#device an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
supertype: instrumentality__instrumentation an artifact (or system of artifacts) that is instrumental in accomplishing some end
subtype: acoustic_device a device for amplifying or transmitting sound
subtype: bell a hollow device made of metal that makes a ringing sound when struck
subtype: church_bell a bell in a church tower (usually sounded to summon people to church); "church bells were ringing all over town"
subtype: cowbell a bell hung around the neck of cow so that the cow can be easily located
subtype: death_bell__deathbell__death_knell__deathknell a bell rung to announce a death
subtype: dinner_bell a bell rung to announce that dinner has been served
subtype: electric_bell a bell activated by the magnetic effect of an electric current
subtype: telephone_bell__telephonebell electric bell that rings to signal a call
subtype: fire_bell a bell rung to give a fire alarm
subtype: Liberty_Bell the bell of Independence Hall; rung 8 July 1776 to announce the signing of the Declaration of Independence
subtype: school_bell a bell rung to announce beginning or ending of class
subtype: sheep_bell__sheepbell a bell hung round the neck of a sheep so that the sheep can be easily located
subtype: shop_bell a bell attached to the door of a small shop; warns the proprietor that a customer has entered the shop
subtype: sleigh_bell__cascabel bell attached to a sleigh, or to harness of horse pulling a sleigh
subtype: warning_bell__warningbell a bell used to sound an alarm
subtype: birdcall a device for imitating a birdcall
subtype: ear_trumpet__eartrumpet__hearing_aid__hearingaid a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
subtype: megaphone a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
subtype: mouthpiece an acoustic device; the part of a telephone into which a person speaks
subtype: mute a device used to soften the tone of a musical instrument
subtype: sordino__sourdine a mute for a violin
subtype: silencer.acoustic_device__muffler a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
subtype: siren.acoustic_device an acoustic device producing a loud often wailing sound as a signal or warning
subtype: slapstick.acoustic_device acoustic device consisting of two paddles hinged together; used by an actor to make a loud noise without inflicting injury when striking someone
subtype: speaking_trumpet a trumpet-shaped acoustic device to intensify and direct the human voice; formerly held to the ear by a hard-of-hearing person
subtype: whistle acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound
subtype: boat_whistle a whistle on a boat that is sounded as a warning
subtype: factory_whistle__factorywhistle a whistle at a factory that is sounded to announce times for starting or stopping work
subtype: steam_whistle__steamwhistle a whistle in which the sound is produced by steam; usually attached to a steam boiler
subtype: adapter__adaptor device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible
subtype: afterburner a device injects fuel into a hot exhaust for extra thrust
subtype: airfoil__control_surface__surface a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
subtype: aileron an airfoil that controls lateral motion
subtype: elevator the airfoil on the tailplane of an aircraft that makes it ascend or descend
subtype: flaps__flap__flap a movable airfoil that is part of an aircraft wing; used to increase lift or drag
subtype: landing_flap__landingflap a flap on the underside of the wing that is lowered to slow the plane for landing
subtype: horizontal_stabilizer__tailplane the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged
subtype: rotor_blade__rotorblade__rotary_wing the long airfoil that rotates to provide the lift that supports a helicopter in the air
subtype: rudder a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
subtype: spoiler a hinged airfoil on the upper surface of an aircraft wing that is raised to reduce lift and increase drag
subtype: spoiler.airfoil an airfoil mounted on the rear of a car to reduce lift at high speeds
subtype: stabilizer.airfoil airfoil consisting of a device for stabilizing an aircraft
subtype: horizontal_tail the horizontal stabilizer and elevator in the tail assembly of an aircraft
subtype: vertical_stabilizer__vertical_fin__tail_fin__tailfin a stabilizer that is part of the vertical tail structure of an airplane
subtype: vertical_tail the vertical airfoil in the tail assembly of an aircraft
subtype: wing.airfoil one of the horizontal airfoils on either side of the fuselage of an airplane
subtype: alarm_system__alarmsystem__warning_device__warningdevice a device that signals the occurrence of some undesirable event
subtype: automobile_horn__car_horn__carhorn__motor_horn__motorhorn__horn__hooter a device on an automobile for making a warning noise
subtype: burglar_alarm__burglaralarm a warning device that is tripped off by the occurrence of a burglary
subtype: smoke_alarm__smokealarm__fire_alarm an alarm that is tripped off by fire or smoke
subtype: horn.alarm_system an alarm device that makes a loud warning sound
subtype: air_horn.horn__airhorn a pneumatic horn
subtype: foghorn a warning device consisting of a horn that generates a loud low tone
subtype: diaphone a foghorn that makes a signal consisting of two tones
subtype: klaxon__claxon a kind of loud horn formerly used on motor vehicles
subtype: shofar__shophar an ancient musical horn made from the horn of a ram; used in ancient times by the Israelites to sound a warning or a summons; used in synagogues today on solemn occasions
subtype: siren.acoustic_device an acoustic device producing a loud often wailing sound as a signal or warning
subtype: contraption__appliance__contrivance__convenience__gadget__gizmo__gismo__widget a device that very useful for a particular job
subtype: gadgetry appliances collectively; "labor-saving gadgetry"
subtype: gimbals__gimbal an appliance that allows an object (such as a ship's compass) to remain horizontal even as its support tips
subtype: applicator__applier a device for applying a substance
subtype: flux_applicator an applicator for applying flux (as in soldering)
subtype: paintbrush a brush used as an applicator (to apply paint)
subtype: spray_gun__spraygun an applicator resembling a gun for applying liquid substances (as paint) in the form of a spray
subtype: aspergill a short-handled device with a globe containing a sponge; used for sprinkling holy water
subtype: autopilot__automatic_pilot__automaticpilot__robot_pilot__robotpilot a navigational device that automatically keeps ships or planes or spacecraft on a steady course
subtype: decoy__bait__lure something used to lure victims into danger
subtype: fisherman's_lure__fisherman'slure__fish_lure (angling) any bright artificial bait consisting of plastic or metal mounted with hooks and trimmed with feathers
subtype: fly.fisherman's_lure fisherman's lure consisting of a fishhook decorated to look like an insect
subtype: dry_fly a fly (fisherman's lure) that skims the surface of the water
subtype: streamer_fly an artificial fly that has wings extending back beyond the crook of the fishhook
subtype: wet_fly fisherman's fly that floats under the surface of the water
subtype: spinner fisherman's lure; revolves when drawn through the water
subtype: ground_bait bait scattered on the water to attract fish
subtype: stool_pigeon__stoolpigeon a dummy pigeon used to decoy others
subtype: billiard_marker a device for keeping the score in a game of billiards
subtype: blower a device that produces a current of air
subtype: hair_dryer__hand_blower__blow_dryer__blow_drier__hair_drier a hand-held electric blower that can blow warm air onto the hair; used for styling hair
subtype: blowtube__blow_tube__blowpipe a device that directs air or gas into a flame to concentrate heat
subtype: bootjack has V-shaped notch for pulling off boots
subtype: breathalyzer__breathalyser a device that measures chemicals (especially the alcohol content) in a person's expired breath
subtype: breathing_device__breathingdevice__breathingapparatu__breathing_machine__breathingmachine__ventilator a device that facilitates breathing in cases of respiratory failure
subtype: aqualung__Aqua-Lung__scuba a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is acronym for Self Contained Underwater Breathing Apparatus
subtype: oxygen_mask a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank
subtype: respirator__inhalator a breathing device for administering long-term artificial respiration
subtype: iron_lung respirator that produces alternations in air pressure in a chamber surrounding a patient's chest to force air into and out of the lungs thus providing artificial respiration
subtype: resuscitator a breathing apparatus used for resuscitation by forcing oxygen into the lungs of a person who has undergone asphyxia or arrest of respiration
subtype: snorkel breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water
subtype: bubbler any of various devices in which air or some other gas is bubbled through a liquid
subtype: buffer.device__fender a cushion-like device that reduces shock due to contact
subtype: launcher__catapult a device that launches aircraft from a warship
subtype: battery_charger__charger a device for charging or recharging batteries
subtype: comb a flat device with narrow pointed teeth on one edge; disentangles or arranges hair
subtype: fine-toothed_comb.comb__finetoothedcomb a comb with teeth set close together
subtype: pocketcomb__pocket_comb a small comb suitable for carrying in a pocket
subtype: pacifier__comforter__baby's_dummy__teething_ring device used for an infant to suck or bite on
subtype: conductor a device designed to transmit electricity, heat, etc.
subtype: busbar__bus an electrical conductor that makes a common connection between several circuits; "the busbar in this computer can transmit data either way between any two components of the system"
subtype: transmission_line__cable__line a conductor for transmitting electrical or optical signals or electric power
subtype: coaxial_cable__coaxialcable__coax__coax_cable a transmission line for high-frequency signals
subtype: ethernet_cable any of several types of coaxial cable used in ethernets
subtype: electrical_cable a cable that provides an electrical connection for telephone or television or power stations
subtype: fiber_optic_cable__fiberopticcable__fibre_optic_cable__fibreopticcable a cable made of optical fibers that can transmit large amounts of information at the speed of light
subtype: power_line__powerline__power_cable__powercable cable used to distribute electricity
subtype: printer_cable__printercable a cable between a computer and a printer
subtype: electric_cord__cord a light insulated conductor for household use
subtype: extension_cord__extensioncord an electric cord used to extend the length of a power cord
subtype: power_cord__powercord a cord to conduct power to an electrical appliance
subtype: electrode a conductor used to make electrical contact with some part of a circuit
subtype: anode a positively charged electrode by which electrons leave an electrical device
subtype: plate.anode the positively charged electrode in a vacuum tube
subtype: base.electrode (electronics) the part of a transistor that separates the emitter from the collector
subtype: cathode a negatively charged electrode that is the source of electrons in an electrical device
subtype: photocathode a cathode that emits electrons when illuminated
subtype: collector.electrode the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes
subtype: electron_gun the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it
subtype: emitter the electrode in a transistor where electrons originate
subtype: control_grid__controlgrid__grid an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
subtype: heat_sink a metal conductor specially designed to conduct (and radiate) heat
subtype: lightning_conductor__lightning_rod__lightningrod a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning
subtype: semiconductor_device__semiconductordevice__semiconductor_unit__semiconductorunit__semiconductor a conductor made with semiconducting material
subtype: semiconductor_diode__semiconductordiode__diode__junction_rectifier__crystal_rectifier__crystalrectifier a semiconductor that consists of a p-n junction
subtype: light-emitting_diode__LED diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
subtype: n-type_semiconductor a semiconductor in which electrical conduction is due chiefly to the movement of electrons
subtype: p-type_semiconductor a semiconductor in which electrical conduction is due chiefly to the movement of positive holes
subtype: thermistor__thermal_resistor__thermalresistor a semiconductor device made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit
subtype: electronic_transistor__transistor__junction_transistor a semiconductor device capable of amplification
subtype: p-n-p_transistor__pnptransistor a junction transistor having an n-type semiconductor between a p-type semiconductor that serves as an emitter and a p-type semiconductor that serves as a collector
subtype: electrical_shunt__shunt__bypass a conductor having low resistance in parallel with another device to divert a fraction of the current
subtype: waveguide__wave_guide a hollow metal conductor that provides a path to guide microwaves; used in radar
subtype: conducting_wire__wire a metal conductor that carries electricity over a distance
subtype: filament a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
subtype: jumper_cable__jumper_lead__lead a jumper that consists of a short piece of wire; "it was a tangle of jumper cables and clip leads"
subtype: clip_lead a short piece of wire with alligator clips on both ends
subtype: lead-in wire connecting an antenna to a receiver or a transmitter to a transmission line
subtype: patchcord a length of wire that has a plug at each end; used to make connections at a patchboard
subtype: telephone_wire__telephonewire__telephone_line__telephoneline__telegraph_wire__telegraphwire__telegraph_line__telegraphline the wire that carries telegraph and telephone signals
subtype: telephone_cord__telephonecord__phone_cord__phonecord the telephone wire that connects to the handset
subtype: contraceptive_device__contraceptivedevice__contraceptive__preventive__preventative__prophylactic_device__birth_control_device__birthcontroldevice an agent or device intended to prevent conception
subtype: cervical_cap a contraceptive device consisting of a small thimble-shaped cup that is placed over the uterine cervix to prevent the entrance of spermatozoa
subtype: coil.contraceptive_device a contraceptive device placed inside a woman's womb
subtype: condom__rubber__safety__safe__prophylactic contraceptive device consisting of a thin rubber or latex sheath worn over the penis during intercourse
subtype: contraceptive_diaphragm__contraceptivediaphragm__diaphragm__pessary a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix
subtype: intrauterine_device__IUD contraceptive device consisting of a piece of bent plastic or metal that is inserted through the vagina into the uterus
subtype: loop.intrauterine_device an intrauterine device in the shape of a loop
subtype: morning-after_pill__morningafterpill a large dose of estrogen taken orally within 24 to 72 hours after intercourse; prevents implantation of a fertilized ovum and so acts as a contraceptive; commonly used after rape or incest
subtype: oral_contraceptive_pill__pill__birth_control_pill__birthcontrolpill__contraceptive_pill__contraceptivepill__oral_contraceptive__anovulatory_drug__anovulatorydrug a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception
subtype: Demulen trade name for an oral contraceptive
subtype: Enovid trade name for an oral contraceptive containing mestranol and norethynodrel
subtype: Loestrin trade name for an oral contraceptive containing estradiol and norethindrone
subtype: Lo/Ovral trade name for an oral contraceptive containing estradiol and norgestrel
subtype: Micronor trade name for and oral contraceptive containing the progestin compound norethindrone
subtype: Modicon trade name for an oral contraceptive containing estradiol and norethindrone
subtype: Norinyl trade name for an oral contraceptive containing norethindrone and mestranol
subtype: Norlestrin trade name for an oral contraceptive containing estradiol and norethindrone
subtype: Nor-Q-D trade name for an oral contraceptive containing norethindrone
subtype: Ovocon trade name for an oral contraceptive containing estradiol and norethindrone
subtype: Ovral trade name for an oral contraceptive containing estradiol and norgestrel
subtype: Ovrette trade name for an oral contraceptive containing norgestrel
subtype: Ovulen trade name for an oral contraceptive containing mestranol and a progestin compound
subtype: spermicide__spermatocide a contraceptive agent that kills spermatozoa
subtype: converter__convertor a device for changing one substance or form or state into another
subtype: Bessemer_converter a refractory-lined furnace used to convert pig iron into steel by the Bessemer process
subtype: catalytic_converter__catalyticconverter a converter that uses a platinum-iridium catalyst to oxidize pollutants and carbon monoxide into carbon dioxide and water; an antipollution device on an automotive exhaust system
subtype: data_converter converter for changing information from one code to another
subtype: digital-analog_converter__digital-to-analog_converter device for converting digital signals into analogue signals
subtype: digitizer__analog-digital_converter__analog-to-digital_converter device for converting analogue signals into digital signals
subtype: electrical_converter converter that converts alternating current into direct current or vice versa
subtype: inverter an electrical converter that converts direct current into alternating current
subtype: power_pack__powerpack a device for converting a power supply to a voltage required by particular equipment
subtype: synchronous_converter__synchronousconverter__rotary__rotary_converter electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa
subtype: electronic_converter (telecommunication) converter for converting a signal from one frequency to another
subtype: torque_converter converter for transmitting and amplifying torque (especially by hydraulic means)
subtype: corrective__restorative a device for treating injury or disease
subtype: pack.corrective a sheet or blanket (either dry or wet) to wrap around the body for its therapeutic effect
subtype: face_pack__pack a cream that cleanses and tones the skin
subtype: pick-me-up__pickup anything with restorative powers; "she needed the pickup that coffee always gave her"
subtype: prosthesis__prosthetic_device corrective consisting of a replacement for a part of the body
subtype: glass_eye__glasseye prosthesis consisting of an artificial eye made of glass
subtype: implant a prosthesis placed permanently in tissue
subtype: artificial_heart a pump that replaces the natural heart
subtype: Jarvik_heart__Jarvik_artificial_heart a kind of artificial heart that has been used with some success
subtype: artificial_joint an metal or plastic part that is surgically implanted to replace a natural joint (possibly elbow or wrist but usually hip or knee)
subtype: breast_implant an implant for cosmetic purposes to replace a breast that has been surgically removed
subtype: dental_implant an implant that replaces a natural tooth
subtype: heart_valve an implant that replaces a natural heart valve
subtype: lens_implant a clear plastic lens implanted in the eye; usually done when the natural lens has been removed in a cataract operation
subtype: penile_implant an implant that creates an artificial erection
subtype: shunt.implant implant consisting of a tube made of plastic or rubber; for draining fluids within the body
subtype: obturator a prosthesis used to close an opening (as to close an opening of the hard palate (usually in cases of cleft palate))
subtype: wooden_leg__peg__pegleg a prosthesis that replaces a missing leg
subtype: crusher a device that crushes something
subtype: cryptograph a device for deciphering codes and ciphers
subtype: cutoff a device that terminates the flow in a pipe
subtype: damper.device a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
subtype: damper_block__piano_damper__pianodamper damper consisting of a small felted block that drops onto a piano string to stop its vibration
subtype: dash-pot a mechanical damper; the vibrating part is attached to a piston that moves in a chamber filled with liquid
subtype: shock_absorber__shockabsorber__shock__cushion a mechanical damper; absorbs energy of sudden impulses
subtype: air_spring__airspring__air_cushion a mechanical device using confined air to absorb the shock of motion
subtype: data_input_device a device that can be used to insert data into a computer or other computational device
subtype: computer_keyboard a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard
subtype: joystick a manual control consisting of a vertical handle that can move freely in two directions; used as an input device to computers or to devices controlled by computers
subtype: digital_scanner__scanner__imagescanner an electronic device that generates a digital representation of a document for data input to a computer
subtype: deflector a device intended to turn aside the flow of something (water or air or smoke etc)
subtype: dental_appliance (dentistry) a device to repair teeth or replace missing teeth
subtype: biteplate a removable dental appliance that is worn in the palate for diagnostic or therapeutic purposes
subtype: braces__brace an appliance that corrects dental irregularities
subtype: crownwork__cap dental appliance consisting of an artificial crown for a tooth
subtype: denture__dental_plate__plate a dental appliance that artificially replaces missing teeth
subtype: bridgework__bridge a denture anchored to teeth on either side of missing teeth
subtype: false_teeth__falseteeth a removable denture
subtype: filling.dental_appliance (dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth; "an informal British term for `filling' is `stopping'"
subtype: inlay.filling (dentistry) a filling consisting of a solid substance (as gold or porcelain) fitted to a cavity in a tooth and cemented into place
subtype: retainer a dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment
subtype: depressor a device used by physician to press a part down or aside
subtype: tongue_depressor a thin depressor used to press the tongue down during an examination of the mouth and throat
subtype: sensor__detector__sensing_element any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it
subtype: metal_detector__metaldetector detector that gives a signal when it detects the presence of metal; used to detect the presence of stray bits of metal in food products or to find buried metal
subtype: mine_detector detector consisting of an electromagnetic device; used to locate explosive mines
subtype: photoelectric_cell__photoelectriccell__photoconductive_cell__photoconductivecell__photocell__electric_eye__magic_eye__magiceye a transducer used to detect and measure light and other radiations
subtype: selenium_cell a photoelectric cell that uses a strip of selenium
subtype: diestock a device that holds the dies that cut external threads on metal cylinders
subtype: drive.device (computer science) a device that writes data onto or reads data from a storage medium
subtype: CD_drive a drive that reads a compact disc and that is connected to an audio system
subtype: CD-ROM_drive a drive that is connected to a computer and on which a CD-ROM can be `played'
subtype: disk_drive__disc_drive__hard_drive__Winchester_drive (computer science) computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it
subtype: external_drive a drive with its own power supply and fan mounted outside the computer system enclosure and connected to the computer by a cable
subtype: internal_drive a drive mounted inside of a computer
subtype: RAM_disk (computer science) a virtual drive that is created by setting aside part of the random-access memory to use as if it were a group of sectors; "access to a RAM disk is very fast but the data it contains is lost when the system is turned off"
subtype: drop_forge__drop_hammer__drop_press device for making large forgings
subtype: elastic_device__elasticdevice any flexible device that will return to its original shape when stretched
subtype: rubber_band__elastic_band__elasticband__elastic a narrow band of elastic rubber used to hold things (such as papers) together
subtype: spring a metal elastic device that returns to its shape or position when pushed or pulled or pressed; "the spring was broken"
subtype: bedspring (usually plural) one of the springs holding up the mattress of a bed
subtype: box_spring__boxspring a coiled bedspring in a frame that is covered with cloth
subtype: coil_spring__volute_spring a spring in the shape of a coil
subtype: leaf_spring long narrow spring consisting of several layers of metal springs bracketed together
subtype: mainspring the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
subtype: spiral_spring a spring that is wound like a spiral
subtype: hairspring a fine spiral spring that regulates the movement of the balance wheel in a timepiece
subtype: electrical_device a device that produces or is powered by electricity
subtype: aerial__antenna__transmitting_aerial an electrical device that sends or receives radio or television signals
subtype: dipole_antenna__dipole an aerial half a wavelength long consisting of two rods connected to a transmission line at the center
subtype: directional_antenna__directionalantenna an antenna that transmits or receives signals only in a narrow angle
subtype: array.directional_antenna an arrangement of aerials spaced to give desired directional characteristics
subtype: dish_antenna__dish__dish_aerial__saucer directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation
subtype: scanner a radar dish that rotates or oscillates in order to scan a broad area
subtype: yagi__Yagi_aerial a sharply directional antenna
subtype: omnidirectional_antenna__omnidirectionalantenna__nondirectional_antenna an antenna that sends or receives signals equally in all directions
subtype: radio_antenna__radioantenna__radio_aerial__radioaerial omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received
subtype: television_antenna__tv-antenna an omnidirectional antenna tuned to the broadcast frequencies assigned to television
subtype: rabbit_ears an indoor tv antenna; 2 extendible rods forming a V
subtype: attenuator an electrical device for attenuating the strength of an electrical signal
subtype: electric_battery__battery a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
subtype: A_battery battery used to heat the filaments of a vacuum tube
subtype: B_battery battery for supplying a constant positive voltage to the plate of a vacuum tube
subtype: C_battery battery used to maintain the grid potential in a vacuum tube
subtype: voltaic_battery__galvanic_battery battery consisting of a number of voltaic cells arranged in series or parallel
subtype: dry_battery__drybattery a voltaic battery consisting of two or more dry cells
subtype: flashlight_battery a small dry battery containing dry cells; used to power flashlights
subtype: storage_battery__storagebattery__accumulator a voltaic battery that stores electric charge
subtype: lead-acid_battery__lead-acid_accumulator a battery with lead electrodes with dilute sulphuric acid as the electrolyte; each cell generates about 2 volts
subtype: car_battery__carbattery__automobile_battery a lead-acid storage battery in a motor vehicle; usually a 12-volt battery of six cells; the heart of the car's electrical system
subtype: nicad__nickelcadmiumaccumulator a rechargeable battery with a nickel cathode and a cadmium anode; often used in emergency systems because of its low discharge rate when not in use
subtype: nickel-iron_battery__nickel-iron_accumulator a storage battery having a nickel oxide cathode and an iron anode with an electrolyte of potassium hydroxide; each cell gives about 1.2 volts
subtype: voltaic_pile__voltaicpile__galvanic_pile battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta
subtype: bimetallic_strip a strip consisting of two metals that bends with a rise in temperature
subtype: brush.electrical_device conducts current between rotating and stationary parts of a generator or motor
subtype: capacitor__capacitance__condenser__electrical_condenser an electrical device characterized by its capacity to store an electric charge
subtype: bypass_condenser__bypass_capacitor a capacitor that provides low impedance over certain (high) frequencies
subtype: electrolytic_capacitor__electrolytic__electrolytic_condenser a fixed capacitor consisting of two electrodes separated by an electrolyte
subtype: Leiden_jar__Leyden_jar an electrostatic capacitor of historical interest
subtype: trimming_capacitor__trimmer capacitor having variable capacitance; used for making fine adjustments
subtype: electric_cell__cell a device that delivers an electric current as the result of a chemical reaction
subtype: electrolytic_cell a cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen)
subtype: fuel_cell cell that produces electricity by oxidation of fuel (hydrogen and oxygen or zinc and air); for use in electric cars
subtype: solar_cell__solarcell__photovoltaic_cell a cell that converts solar energy into electrical energy
subtype: storage_cell__storagecell__secondary_cell__secondarycell a cell that can be recharged
subtype: voltaic_cell__voltaiccell__galvaniccell__primary_cell__primarycell an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged
subtype: Leclanche_cell voltaic cell that produces approximately 1.5 volts
subtype: dry_cell__drycell a small Leclanche cell containing no free liquid; the electrolyte is a paste and the negative zinc pole forms the container of the cell; used in flashlights, portable radios, etc.
subtype: mercury_cell__mercurycell a primary cell consisting of a zinc anode and a cathode of mercury oxide and an electrolyte of potassium hydroxide
subtype: standard_cell a primary cell used as a standard of electro-motive force
subtype: Clark_cell__Clark_standard_cell a form of voltaic cell once used as a standard for electromotive force
subtype: Weston_cell__cadmium_cell__cadmiumcell a standard voltaic cell (trademark Weston)
subtype: wet_cell__wetcell a primary voltaic cell having a liquid electrolyte
subtype: electrical_circuit__circuit__electric_circuit an electrical device that provides a path for electrical current to flow
subtype: bridge_circuit__bridge a circuit consisting of two branches (4 arms arranged in a diamond configuration) across which a meter is connected
subtype: Wheatstone_bridge a bridge used to measure resistances
subtype: bridged-T a circuit consisting of a T-network with an additional shunt bridging the two series circuits
subtype: closed_circuit__loop a complete electrical circuit around which current flows or a signal circulates
subtype: parallel_circuit__shunt_circuit__shuntcircuit a closed circuit in which the current divides into two or more paths before recombining to complete the circuit
subtype: computer_circuit (computer science) a circuit that is part of a computer
subtype: logic_gate__logicgate__gate a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs
subtype: AND_circuit__AND_gate a circuit in a computer that fires only when all of its inputs fire
subtype: NAND_circuit__NAND_gate a logic gate that produces an output that is the inverse of the output of an AND gate
subtype: OR_circuit__OR_gate__orgate a gate circuit in a computer that fires when any of its inputs fire
subtype: X-OR_circuit__XOR_circuit__XOR_gate gate for exclusive OR; a circuit in a computer that fires only if only one of its inputs fire
subtype: integrated_circuit__microcircuit a microelectronic computer circuit incorporated into a chip of semiconductor; a whole system rather than a single component
subtype: silicon_chip__siliconchip__chip__microchip__micro_chip__microchip electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit
subtype: biochip a microchip that uses tiny strands of DNA to latch onto and quickly recognize thousands of genes at a time; intended for use in a biological environment
subtype: gene_chip__DNA_chip a microchip that holds DNA probes that form half of the DNA double helix and can recognize DNA from samples being tested
subtype: memory_chip a RAM microchip that can be plugged into a computer to provide additional memory
subtype: read-only_memory_chip a memory chip providing read-only memory
subtype: microprocessor integrated circuit semiconductor chip that performs the bulk of the processing and controls the parts of a system; "a microprocessor functions as the central processing unit of a microcomputer"; "a disk drive contains a microprocessor to handle the internal functions of the drive"
subtype: interface.computer_circuit__port (computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)
subtype: parallel_interface__parallel_port an interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously
subtype: serial_port an interface (commonly used for modems and mice and some printers) that transmits data a bit at a time
subtype: small_computer_system_interface__SCSI interface consisting of a standard port between a computer and its peripherals that is used in some computers
subtype: module.computer_circuit computer circuit consisting of an assembly of electronic components (as of computer hardware)
subtype: printed_circuit__printedcircuit computer circuit consisting of an electronic sub-assembly; copper conductors are laminated on an insulating board or card and circuit components are inserted into holes and dip soldered
subtype: circuit_board__circuitboard__circuit_card__circuitcard__board__card a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
subtype: CPU_board__mother_board the main circuit board for a computer
subtype: PC_board a removable circuit board for a personal computer; fits into a slot in the mother board
subtype: delay_line__delayline a circuit designed to introduce a calculated delay into the transmission of a signal
subtype: acoustic_delay_line__sonic_delay_line__sonicdelayline a delay line based on the time of propagation of sound waves
subtype: electromagnetic_delay_line__electromagneticdelayline a delay line based on the time of propagation of electromagnetic waves
subtype: feedback_circuit__feedback_loop a circuit that feeds back some of the output to the input of a system
subtype: control_circuit__controlcircuit__negative_feedback_circuit a feedback circuit that subtracts from the input
subtype: flip-flop.electrical_circuit__flipflop an electronic circuit that can assume either of two stable states
subtype: limiter__clipper (electronics) a circuit whose output is limited which serves to limits the amplitude of a waveform or clip off the peaks
subtype: data_link__link an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
subtype: open_circuit an incomplete electrical circuit in which no current flows
subtype: pulse_timing_circuit a circuit that times pulses
subtype: resonant_circuit__resonator an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude
subtype: series_circuit a circuit having its parts connected serially
subtype: squelch_circuit__squelchcircuit__squelch__squelcher an electric circuit that cuts off a receiver when the signal becomes weaker than the noise
subtype: tank_circuit an oscillatory circuit
subtype: T-network a circuit formed by two equal series circuits with a shunt between them
subtype: wiring.electrical_circuit a circuit of wires for the distribution of electricity
subtype: light_circuit__lightcircuit__lighting_circuit wiring that provides power to electric lights
subtype: control_panel__controlpanel__instrument_panel__control_board__controlboard__board__panel electrical device consisting of an insulated panel containing switches and dials and meters for controlling other electrical devices; "he checked the instrument panel"; "suddenly the board lit up like a Christmas tree"
subtype: dashboard instrument panel on an automobile or airplane containing dials and controls
subtype: electrical_distributor__distributor__distributer electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence
subtype: electrograph electrical device used for etching by electrolytic means
subtype: electrostatic_generator__electrostaticgenerator__electrostatic_machine__electrostaticmachine__Wimshurst_machine__Van_de_Graaff_generator electrical device that produces a high voltage by building up a charge of static electricity
subtype: electrophorus__electrophoru a simple electrostatic generator that generates repeated charges of static electricity
subtype: filter.electrical_device n electrical device that alters the frequency spectrum of signals passing through it
subtype: flasher an electrical device that automatically turns a lamp on and off (as for an advertising display)
subtype: electrical_fuse__fuse electrical device that can interrupt the flow of electrical current when it is overloaded
subtype: cartridge_fuse__cartridgefuse a fuse cased in a tube
subtype: circuit_breaker__circuitbreaker__breaker a device that trips like a switch and opens the circuit when overloaded
subtype: plug_fuse a fuse with a thread that screws into a socket
subtype: inductor__inductance an electrical device that introduces inductance into a circuit
subtype: jack.electrical_device an electrical device consisting of a connector socket designed for the insertion of a plug
subtype: telephone_jack__telephonejack__phone_jack__phonejack a jack for plugging in a telephone
subtype: load.electrical_device electrical device to which electrical power is delivered
subtype: male_plug__plug an electrical device with two or three pins that is inserted in a socket to make an electrical connection
subtype: telephone_plug__telephoneplug__phone_plug__phoneplug a plug for connecting a telephone
subtype: Cottrell_precipitator__precipitator removes dust particles from gases by electrostatic precipitation
subtype: reactor an electrical device used to introduce reactance into a circuit
subtype: coil reactor consisting of a spiral of insulated wire that introduces inductance into a circuit
subtype: armature coil in which voltage is induced by motion through a magnetic field
subtype: rotor_coil__rotorcoil__rotor the rotating armature of a motor or generator
subtype: astatic_coils__astaticcoil an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic field
subtype: choke_coil__chokecoil__choke__choking_coil__chokingcoil a coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating current
subtype: field_coil__fieldcoil__field_winding__fieldwinding the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine
subtype: induction_coil__inductioncoil a coil for producing a high voltage from a low-voltage source
subtype: ignition_coil an induction coil that converts current from a battery into the high-voltage current required by spark plugs
subtype: spark_coil__sparkcoil an induction coil used to create sparks
subtype: primary_coil__primarycoil__primary_winding__primarywinding__primary coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit; "current through the primary coil induces current in the secondary coil"
subtype: read/write_head__head (computer science) a tiny electromagnetic coil and metal pole used to write and read magnetic patterns on a disk
subtype: secondary_coil__secondarycoil__secondary_winding__secondarywinding__secondary coil such that current is induced in it by passing a current through the primary coil
subtype: solenoid a coil of wire around an iron core; becomes a magnet when current passes through the coil
subtype: tickler_coil__ticklercoil a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback
subtype: rectifier electrical device that transforms alternating into direct current
subtype: demodulator rectifier that extracts modulation from a radio carrier wave
subtype: full-wave_rectifier rectifier that converts the negative half wave of an alternating current into a positive half wave
subtype: electrical_relay__relay electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit
subtype: frame_relay
subtype: resistor__resistance an electrical device that resists the flow of electrical current
subtype: ballast_resistor__ballastresistor__barretter a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
subtype: potential_divider__potentialdivider__voltage_divider__voltagedivider resistors connected in series across a voltage source; used to obtain a desired fraction of the voltage
subtype: potentiometer.potential_divider__pot a resistor with three terminals, the third being an adjustable center terminal; used to adjust voltages in radios and TV sets
subtype: rheostat__variable_resistor resistor for regulating current
subtype: dimmer a rheostat that varies the current through an electric light in order to control the level of illumination
subtype: security_system__security_measures__security an electrical device that sets off an alarm when someone tries to break in
subtype: solar_array__solararray__solar_battery__solarbattery__solar_panel__solarpanel electrical device consisting of a large array of connected solar cells
subtype: spark_arrester__sparkarrester electrical device to reduce sparking when electrical contacts are opened or closed
subtype: spark_plug__sparkplug__sparking_plug__plug electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
subtype: suppressor__suppresser an electrical device for suppressing unwanted currents
subtype: surge_suppressor__surgesuppressor__surge_protector__surgeprotector__spike_suppressor__spikesuppressor__spike_arrester__spikearrester__lightning_arrester__lightningarrester electrical device inserted in a power line to protect equipment from sudden fluctuations in current
subtype: transducer an electrical device that converts one form of energy into another
subtype: electro-acoustic_transducer a transducer that converts electrical to acoustic energy or vice versa
subtype: cartridge.electro-acoustic_transducer__pickup an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable
subtype: crystal_pickup__crystalpickup a cartridge in which an output voltage is produced by the vibration of a piezoelectric crystal
subtype: earphone__earpiece__headphone__phone electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear; "it was not the typing but the earphones that she disliked"
subtype: telephone_receiver__telephonereceiver__receiver earphone that converts electrical signals into sounds
subtype: headset receiver consisting of a pair of headphones
subtype: loudspeaker_system__loudspeakersystem__loudspeaker__speaker__speaker_unit__speakerunit__speaker_system__speakersystem electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
subtype: bullhorn__loud-hailer a portable loudspeaker with built-in microphone and amplifier
subtype: squawk_box__squawker__intercom_speaker the loudspeaker on an inter-com or public address system
subtype: tannoy (British) a loudspeaker
subtype: tweeter a loudspeaker that reproduces higher audio frequency sounds; "the sound system had both tweeters and woofers"
subtype: woofer a loudspeaker that reproduces lower audio frequency sounds
subtype: microphone__mike device for converting sound waves into electrical energy
subtype: bug.microphone a small hidden microphone; for listening secretly
subtype: condenser_microphone__condensermicrophone__capacitor_microphone__capacitormicrophone microphone consisting of a capacitor with one plate fixed and the other forming the diaphragm moved by sound waves
subtype: crystal_microphone__crystalmicrophone a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage
subtype: mosaic.transducer transducer formed by the light-sensitive surface on a television camera tube
subtype: photoelectric_cell__photoelectriccell__photoconductive_cell__photoconductivecell__photocell__electric_eye__magic_eye__magiceye a transducer used to detect and measure light and other radiations
subtype: transformer an electrical device by which alternating current of one voltage is changed to another voltage
subtype: coil.transformer a transformer that supplies high voltage to spark plugs in a gasoline engine
subtype: step-down_transformer a transformer that reduces voltage
subtype: step-up_transformer a transformer that increases voltage
subtype: cascade_transformer a number of transformers in series; provides a high-voltage source
subtype: Tesla_coil a step-up transformer with an air core; used to produce high voltages at high frequencies
subtype: voltage_regulator__voltageregulator a transformer whose voltage ratio of transformation can be adjusted
subtype: transponder electrical device designed to receive a specific signal and automatically transmit a specific reply
subtype: zapper an electrical device that can injure or kill by means of electric currents; "a bug zapper"
subtype: electronic_device a device that accomplishes its purpose electronically
subtype: answering_machine__answeringmachine an electronic device that answers the telephone and records messages
subtype: beeper__pager an electronic device that generates a series of beeps when the person carrying it is being paged
subtype: defibrillator an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation
subtype: display.electronic_device an electronic device that represents information in visual form
subtype: caller_ID a small display that will show you the telephone number of the party calling you
subtype: digital_display__digitaldisplay__alphanumeric_display a display that gives the information in the form of characters (numbers or letters)
subtype: liquid_crystal_display__LCD a digital display that uses liquid crystal cells that change reflectivity in an applied electric field; used for portable computer displays and watches etc.
subtype: active_matrix_screen a type of LCD screen used for some portable computers; there is a separate circuit for each pixel
subtype: passive_matrix_display a type of LCD screen used for some portable computers; parallel wires run both vertically and horizontally and pixels are turned on when the wires intersecting at that pixel are both energized; "passive matrix displays are generally inferior to active matrix displays"
subtype: dual_scan_display a type of passive matrix display in which the top and bottom half of the screen are refreshed simultaneously
subtype: display_panel__displaypanel__display_board__displayboard__board a board on which information can be displayed to public view
subtype: big_board__bigboard the large display board at the New York Stock Exchange that reports on stocks traded on the exchange
subtype: monitoring_device__monitor display consisting of a device that takes signals from a computer and displays them on a CRT screen
subtype: CRT_screen__screen display on the surface of the large end of a cathode-ray tube on which is electronically created
subtype: screen_background__background__desktop (computer science) the area of the screen in graphical user interfaces against which icons and windows appear
subtype: computer_screen__computer_display a screen used to display the output of a computer to the user
subtype: window.display (computer science) a rectangular part of a computer screen that contains a display different from the rest of the screen
subtype: dialog_box__panel (computer science) a small temporary window in a graphical user interface that appears in order to request information from the user; after the information has been provided the user dismisses the box with `okay' or `cancel'
subtype: foreground.window (computer science) a window for an active application
subtype: display_adapter__displayadapter__display_adaptor__displayadaptor (computer science) an electronic device that converts information in memory to video output to a display
subtype: dongle (computer science) an electronic device that must be attached to a computer in order for it to use protected software
subtype: generator.electronic_device an electronic device for producing a signal voltage
subtype: oscillator generator that produces sonic oscillations or alternating current
subtype: crystal_oscillator__crystaloscillator__quartz_oscillator an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal
subtype: local_oscillator__localoscillator__heterodyne_oscillator an oscillator whose output heterodynes with the incoming radio signal to produce sum and difference tones
subtype: pulse_generator__pulsegenerator a generator of single or multiple voltage pulses; usually adjustable for pulse rate
subtype: pinger a pulse generator used for echo sounding in sonar
subtype: hearing_aid__hearingaid__deaf-aid an electronic device that amplifies sound and is worn to compensate for poor hearing
subtype: logic_element__logicelement an electronic device that performs an elementary logic operation
subtype: threshold_element__thresholdelement__threshold_gate__thresholdgate a logic element that performs a threshold operation
subtype: mouse.electronic_device a hand-operated electronic device that moves the cursor on a computer screen
subtype: multiplexer a device that can interleave two or more activities
subtype: data_multiplexer a multiplexer that permits two or more data sources to share a common transmission medium
subtype: WDM wave length division multiplexer
subtype: artificial_pacemaker__pacemaker an implanted electronic device that takes over the function of the natural cardiac pacemaker
subtype: repeater (electrical engineering) electronic device that amplifies a signal before transmitting it again; "repeaters can be used in computer networks to extend cabling distances"
subtype: digital_scanner__scanner__imagescanner an electronic device that generates a digital representation of a document for data input to a computer
subtype: system_clock an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components
subtype: thermionic_vacuum_tube__tube__vacuum_tube__thermionic_tube__electron_tube__thermionic_valve electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
subtype: acorn_tube__acorntube a small vacuum tube; used at high frequencies
subtype: diode__rectifying_tube__rectifying_valve a thermionic tube having two electrodes; used as a rectifier
subtype: electron_multiplier a vacuum tube that amplifies a flow of electrons
subtype: gas-discharge_tube__gasdischargetube a tube in which an electric discharge takes place through a gas
subtype: cathode-ray_tube__cathoderaytube__CRT a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen
subtype: Crookes_tube the original gas-discharge cathode-ray tube
subtype: kinescope__picture_tube__picturetube__television_tube a cathode-ray tube in a television receiver; translates the received signal into a picture on a luminescent screen
subtype: color_tube__colortube__colour_tube__color_television_tube__colour_television_tube__color_TV_tube__colour_TV_tube a television tube that displays images in full color
subtype: tricolor_television_tube__tricolour_television_tube__tricolor_tube__tricolour_tube__tricolourtube a color television tube in which three primary colors are combined to give the full range of colors
subtype: glow_lamp__glow_tube a gas-discharge tube consisting of a cold cathode and a diode in a tube filled with gas; the color of the glow depends on the particular gas
subtype: klystron an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation
subtype: magnetron a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
subtype: pentode a thermionic tube having five electrodes
subtype: television-camera_tube__television_pickup_tube a tube that rapidly scans an optical image and converts it into electronic signals
subtype: iconoscope the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin
subtype: image_orthicon__imageorthicon__orthicon a now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused onto the target causing secondary emission of electrons
subtype: tetrode a thermionic tube having four electrodes
subtype: triode a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which making amplification possible
subtype: X-ray_tube a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
subtype: subscriber_line
subtype: ADSL asynchronous subscriber line, assymetric digital subscriber line
subtype: DSL digital subscriber line, HDSL, VDSL
subtype: energizer__energiser a device that supplies electrical energy
subtype: exercise_device a device designed to provide exercise for the user
subtype: exercise_bike__exercycle an exercise device resembling a stationary bike
subtype: treadmill an exercise device consisting of an endless belt on which a person can walk or jog without changing place
subtype: explosive_device__explosivedevice device that bursts with sudden violence from internal energy
subtype: bomb an explosive device fused to denote under specific conditions
subtype: blockbuster a large bomb used to demolish extensive areas
subtype: bombshell an explosive bomb or artillery shell
subtype: car_bomb__carbomb a bomb placed in a car and wired to explode when the ignition is started or by remote control or by a timing device
subtype: cluster_bomb__clusterbomb bomb consisting of a canister that is dropped from a plane and that opens to release a cluster of fragmentation bombs over a wide area
subtype: cruise_missile an unmanned aircraft that is a self-contained bomb
subtype: depth_charge__depthcharge__depth_bomb__depthbomb a bomb that explodes at a pre-set depth under water; anti-submarine device
subtype: firebomb a bomb with incendiary effects
subtype: fragmentation_bomb__fragmentationbomb__antipersonnel_bomb__antipersonnelbomb a bomb designed to break into many small high-velocity fragments
subtype: gas_bomb__gasbomb__gasshell (military) bomb consisting of an explosive projectile filled with a toxic gas that is released when the bomb explodes
subtype: grenade a small explosive bomb thrown by hand or fired from a missile
subtype: hand_grenade a grenade designed to be thrown by hand
subtype: rifle_grenade__riflegrenade a grenade that is thrown from a launching device attached to the barrel of a rifle
subtype: incendiary_bomb__incendiary a bomb that is designed to start fires
subtype: Molotov_cocktail__petrol_bomb__gasoline_bomb a crude incendiary bomb made of a bottle filled with flammable liquid and fitted with a rag wick
subtype: pipe_bomb a small homemade bomb usually contained in a metal pipe
subtype: plastic_bomb__plasticbomb a bomb made of plastic explosive
subtype: smoke_bomb__smokebomb__smoke_grenade__smokegrenade a bomb that gives off thick smoke when it explodes; used to make a smoke screen or to mark a position
subtype: stink_bomb__stinkbomb__stench_bomb a small bomb designed to give off a foul odor when it explodes
subtype: time_bomb__infernal_machine a bomb that has a detonating mechanism that can be set to go off at a particular time
subtype: detonator__detonating_device__cap a mechanical or electrical explosive device or a small amount of explosive; can be used to fire an explosive charge
subtype: blasting_cap a small tube filled with detonating substances; used to detonate high explosives
subtype: percussion_cap a detonator that explodes when struck
subtype: firework__pyrotechnics (usually plural) an explosive device that burns with colored flames
subtype: Catherine_wheel__catherine_wheel__catherinewheel__pinwheel circular-shaped firework; spins round and round
subtype: firecracker__cracker firework consisting of a small explosive charge and fuse in a heavy paper casing
subtype: cannon_cracker a large firecracker
subtype: cherry_bomb a red ball-shaped firecracker with high explosive power
subtype: whizbang__whizzbang a firecracker that (like the whizbang shell) makes a whizzing sound followed by a loud explosion
subtype: fizgig a firework that fizzes as it moves
subtype: maroon an exploding firework used as a warning signal
subtype: Roman_candle__roman_candle__romancandle a cylindrical firework that projects a series of colored balls of fire
subtype: serpent.firework a firework that moves in serpentine manner when ignited
subtype: skyrocket__rocket sends a firework display high into the sky
subtype: sparkler a firework that burns slowly and throws out a shower of sparks
subtype: squib firework consisting of a tube filled with powder (as a broken firecracker) that burns with a fizzing noise
subtype: mine.explosive_device explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel
subtype: floating_mine__marine_mine an explosive mine designed to destroy ships that bump into it
subtype: magnetic_mine a marine mine that is detonated by a mechanism that responds to magnetic material (as the steel hull of a ship)
subtype: land_mine__ground-emplaced_mine__booby_trap__boobytrap an explosive mine hidden underground; explodes when stepped on or driven over
subtype: bouncing_betty an anti-personnel land mine
subtype: claymore_mine__claymore an anti-personnel land mine whose blast is aimed at the oncoming enemy
subtype: petard a explosive device used to break down a gate or wall
subtype: fan a device for creating a current of air by movement of a surface or surfaces
subtype: electric_fan__blower a fan run by an electric motor
subtype: exhaust_fan__exhaustfan a fan that moves air out of an enclosure
subtype: attic_fan__atticfan a fan that blows hot air out of the attic of a building
subtype: punkah a large fan consisting of a frame covered with canvas that is suspended from the ceiling; used in India for circulating air in a room
subtype: filter device that removes something from whatever passes through it
subtype: air_filter__airfilter__aircleaner removes dust from air that passes through it
subtype: filter_tip an air filter on the end of a cigarette; contains material that filters the smoke
subtype: bacteria_bed layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms
subtype: coffee_filter filter (usually of paper) that passes the coffee and retains the coffee grounds
subtype: drain_basket__drainbasket a filter in a sink drain; traps debris but passes water
subtype: filter_bed filter consisting of a layer of sand or gravel for filtering water
subtype: fuel_filter a filter in the fuel line that screens out dirt and rust particles from the fuel
subtype: light_filter__lightfilter__diffusing_screen__diffusingscreen a transparent filter that reduces the light (or some wavelengths of the light) passing through it
subtype: oil_filter__oilfilter a filter that removes impurities from the oil used to lubricate an internal-combustion engine
subtype: strainer a filter to retain larger pieces while smaller pieces and liquids pass through
subtype: colander__cullender bowl-shaped strainer; used to wash or drain foods
subtype: sieve__screen a strainer for separating lumps from powdered material or grading particles
subtype: riddle a coarse sieve (as for gravel)
subtype: sifter a household sieve (as for flour)
subtype: tea-strainer__teastrainer a device to keep back tea leaves when pouring a cup of tea
subtype: water_filter__waterfilter a filter to remove impurities from the water supply
subtype: glass_wool__glasswool glass fibers spun and massed into bundles resembling wool
subtype: diatomaceous_earth__diatomite__kieselguhr a light soil consisting of siliceous diatom remains and often used as a filtering material
subtype: fire_extinguisher__extinguisher__asphyxiator a manually operated device for extinguishing small fires
subtype: gas_fixture__gasfixture a device to convey illuminating gas from the pipe to the gas burner
subtype: groover a device that makes grooves by cutting or punching
subtype: guard.device__safety a device designed to prevent injury
subtype: fender a low metal guard to confine falling coals to a hearth
subtype: safety_catch__safety_lock guard consisting of a locking device that prevents a weapon from being fired
subtype: heater__warmer device that heats water or supplies warmth to a room
subtype: brazier__brasier large metal container in which coal or charcoal is burned; warms people who must stay outside for long times
subtype: hibachi a portable brazier that burns charcoal and has a grill for cooking
subtype: convector a space heater that transfers heat to the surrounding air by convection
subtype: defroster__deicer heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)
subtype: demister heater that removes mist from the windshield of a car
subtype: gas_heater__gasheater a heater that burns gas for heat
subtype: heating_pad__heatingpad__hot_pad__hotpad heater consisting of electrical heating elements contained in a flexible pad
subtype: oil_heater__oilheater__oilstove__kerosene_heater__kerosine_heater heater that burns oil (as kerosine) for heating or cooking
subtype: radiator.heater heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings
subtype: solar_heater__solarheater a heater that makes direct use of solar energy
subtype: space_heater__spaceheater heater consisting of a self-contained (usually portable) unit to warm a room
subtype: electric_heater__electric_fire a small electric space heater
subtype: heat_lamp__infrared_lamp electric heater consisting of a high-power incandescent lamp that emits infrared radiation; "the bathroom could be warmed by an infrared lamp"
subtype: stove any heating apparatus
subtype: hot-water_heater__hotwaterheater__water_heater__waterheater a heater and storage tank for the heated water
subtype: water_back__waterback water heater consisting of a tank or pipes set at the back of a fireplace or in the firebox of a stove
subtype: heat_exchanger device that transfers heat from one liquid to another without allowing them to mix
subtype: holding_device__holdingdevice a device for holding something
subtype: chuck a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill
subtype: collet_chuck__collet a cone-shaped chuck used for holding cylindrical pieces in a lathe
subtype: clamp a device (used by carpenters) that holds things firmly together
subtype: bench_clamp__benchclamp a clamp used to hold work in place on a workbench
subtype: C-clamp a clamp in the shape of a C
subtype: cramp a clamp for holding pieces of wood together while they are glued
subtype: pipe_vise__pipe_clamp a clamp for holding pipe that is to be cut or threaded
subtype: press.clamp__pres clamp to prevent wooden rackets from warping when not in use
subtype: holder a holding device; "a towel holder"
subtype: candlestick__candleholder a holder with sockets for candles
subtype: candelabrum branched candlestick; ornamental; has several lights
subtype: menorah (Judaism) a candelabrum with nine branches; used during the Hanukkah festival
subtype: Menorah (Judaism) a candelabrum with seven branches used in ceremonies to symbolize the seven days of creation
subtype: girandole__girandola an ornate candle holder; often with a mirror
subtype: sconce a candlestick with a flat side to be hung on the wall
subtype: keyboard.holder holder consisting of an arrangement of hooks on which keys or locks can be hung
subtype: thole__peg__tholepin__rowlock__oarlock a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing
subtype: zarf (Middle East) an ornamental metal cup-shaped holder for a hot coffee cup
subtype: jaws holding device consisting of one or both of the opposing parts of a tool that close to hold an object
subtype: shoemaker's_last__shoemaker'slast__last__cobbler's_last__cobbler'slast holding device shaped like a human foot that is used to fashion or repair shoes
subtype: spike.holding_device any holding device consisting of a long sharp-pointed object
subtype: bench_vise__benchvise__vise a holding device attached to a workbench; has two jaws to hold workpiece firmly in place
subtype: machinist's_vise__machinist'svise__metalworking_vise a vise with two parallel iron jaws and a wide opening below
subtype: wood_vise__woodworking_vise__woodworkingvise__shoulder_vise a vise with jaws that are padded in order to hold lumber without denting it
subtype: hydrofoil__foil a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through; "the fins of a fish act as hydrofoils"
subtype: imprint.device a device produced by pressure on a surface
subtype: impression.imprint (dentistry) an imprint of the teeth and gums in wax or plaster; "the dentist made an impression for use in preparing an inlay"
subtype: indicator a device for showing the operating condition of some system
subtype: air_sock__airsock__air_sleeve__airsleeve__wind_sock__wind_sleeve truncated cloth cone used to indicate wind direction
subtype: annunciator an indicator that indicates which electrical circuit has been active
subtype: cursor__pointer (computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving the cursor allows the user to point to commands or screen positions
subtype: dial.indicator the circular graduated indicator on various measuring instruments
subtype: fuel_gauge__fuel_indicator an indicator of the amount of fuel remaining in a vehicle
subtype: gnomon indicator provided by the stationary arm whose shadow indicates the time on the sundial
subtype: spirit_level__level indicator that establishes the horizontal when a bubble is centered in a tube of liquid
subtype: mason's_level__mason'slevel a level longer than a carpenter's level
subtype: pilot_light__pilot_lamp__pilotlamp__indicator_lamp__indicatorlamp indicator consisting of a light to indicate whether power is on or a motor is in operation
subtype: pointer an indicator as on a dial
subtype: hand a rotating pointer on the face of a timepiece; "the big hand counts the minutes"
subtype: hour_hand__little_hand the shorter hand of a clock that points to the hours
subtype: minute_hand__big_hand__bighand points to the minutes
subtype: second_hand.hand__secondhand hand marking seconds on a timepiece
subtype: sweep_hand__sweephand__sweepsecond a second hand that is mounted on the same center as the hour and minute hand and is read on the minutes
subtype: light_pen__electronic_stylus (computer science) a pointer that when pointed at a computer display senses whether or not the spot is illuminated
subtype: needle.pointer a slender pointer for indicating the reading on the scale of a measuring instrument
subtype: scale.indicator an indicator having a graduated sequence of marks
subtype: vernier_scale__vernierscale__vernier a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale
subtype: test_paper paper impregnated with an indicator for use in chemical tests
subtype: tidemark indicator consisting of a line at the high-water or low-water limits of the tides
subtype: instrument a device that requires skill for proper use
subtype: analyzer__analyser an instrument that performs analyses
subtype: cautery__cauterant an instrument or substance used to destroy tissue for medical reasons (eg removal of a wart) by burning it with a hot iron or an electric current or a caustic or by freezing it
subtype: cryocautery.cautery an instrument for destroying tissue by freezing it
subtype: searing_iron__searingiron a hot iron used to destroy tissue
subtype: drafting_instrument an instrument used by a draftsman in making drawings
subtype: compass.drafting_instrument__compas drafting instrument used for drawing circles
subtype: dividers a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements
subtype: protractor drafting instrument used to draw or measure angles
subtype: triangle.drafting_instrument any of various triangular drafting instruments used to draw straight lines at specified angles
subtype: T-square a square used by draftsmen to draw parallel lines
subtype: extractor an instrument for extracting tight-fitting components
subtype: forceps an extractor consisting of a pair of pincers used in medical treatment (especially for the delivery of babies)
subtype: lion-jaw_forceps a type of forceps
subtype: mouse-tooth_forceps__mousetoothforcep a type of forceps
subtype: instrument_of_execution an instrument designed and used to take the life of a condemned person
subtype: electric_chair__chair__deathchair__hot_seat__hotseat an instrument of execution by electrocution; resembles a chair
subtype: gallows__gallow__gallowstree__gibbet__gallous__gallou instrument of execution consisting of a wooden frame from which condemned persons are executed by hanging
subtype: garrote__garotte__garrotte__iron_collar an instrument of execution for execution by strangulation
subtype: gas_chamber__death_chamber__deathchamber instrument of execution consisting of a sealed chamber into which poison gas is introduced; used to kill people or animals
subtype: guillotine instrument of execution that consists of a weighted blade between two vertical poles; used for beheading people
subtype: stake instrument of execution consisting of a vertical post that a victim is tied to for burning
subtype: instrument_of_punishment an instrument designed and used to punish a condemned person
subtype: cangue an instrument of punishment formerly used in China for petty criminals; consists of a heavy wooden collar enclosing the neck and arms
subtype: cucking_stool__cuckingstool__ducking_stool__duckingstool an instrument of punishment consisting of a chair in which offenders were ducked in water
subtype: instrument_of_torture an instrument of punishment designed and used to inflict torture on the condemned person
subtype: iron_boot__boot__iron_heel an instrument of torture that is used to crush the foot and leg
subtype: iron_maiden instrument of torture consisting of a hollow iron frame shaped like the human body and lined with spikes to impale the victim
subtype: rack.instrument_of_torture__wheel an instrument of torture that stretches or disjoints or mutilates victims
subtype: thumbscrew.instrument_of_torture instrument of torture that crushes the thumb
subtype: paddle an instrument of punishment consisting of a flat board
subtype: pillory__stock a wooden instrument of punishment on a post with holes for the neck and hands; offenders were locked in and so exposed to public scorn
subtype: switch.instrument_of_punishment a flexible implement used as an instrument of punishment
subtype: birch_rod__birchrod__birch bundle of birch twigs used to hit people as punishment
subtype: cane.switch a stiff switch used to hit students as punishment
subtype: ferule a switch (a stick or cane or flat paddle) used to punish children
subtype: rattan__ratan a switch made from the stems of the rattan palms
subtype: measuring_instrument__measuringinstrument__measuring_system__measuringsystem__measuring_device__measuringdevice instrument that shows the extent or amount or quantity or degree of something
subtype: accelerometer an instrument for measuring the acceleration of aircraft or rockets
subtype: actinometer an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect)
subtype: algometer device for measuring pain caused by pressure
subtype: altazimuth an instrument that measures the altitude and azimuth of celestial bodies; used in navigation
subtype: altimeter an instrument that measures the height above ground; used in navigation
subtype: hypsometer an altimeter that uses the boiling point of water to determine land elevation
subtype: astrolabe an early form of sextant
subtype: atmometer__evaporometer an instrument that measures rate of evaporation of water
subtype: audiometer an instrument used to measure the sensitivity of hearing
subtype: barometer an instrument that measures atmospheric pressure
subtype: aneroid_barometer__aneroidbarometer__aneroid a barometer that measures pressure without using fluids
subtype: barograph a recording barometer; automatically records on paper the variations in atmospheric pressure
subtype: mercury_barometer__mercurybarometer barometer that shows pressure by the height of a column of mercury
subtype: weatherglass a simple barometer for indicating changes in atmospheric pressure
subtype: bolometer an instrument that measures heat radiation; extremely sensitive
subtype: bubble_chamber an instrument that records the tracks of ionizing particles
subtype: burette measuring instrument consisting of a graduated glass tube with a tap at the bottom; used for titration
subtype: caliper__calipers__calliper__callipers__calliper an instrument for measuring the distance between two points
subtype: inside_caliper caliper for measuring inside dimensions (the size of a cavity or hole); points on its legs curve outward
subtype: micrometer_caliper__micrometer__micrometer_gauge caliper for measuring small distances
subtype: odd-leg_caliper__oddlegcaliper caliper having the points on its legs both curve in the same direction
subtype: outside_caliper__outsidecaliper caliper for measuring outside dimensions; points on its legs curve inward
subtype: vernier_caliper__vernier_micrometer__verniermicrometer a caliper with a vernier scale for very fine measurements
subtype: calorimeter a measuring instrument that determines quantities of heat
subtype: bomb_calorimeter__bomb strong sealed vessel for measuring heat of combustion
subtype: chronoscope an instrument for accurate measurements of small intervals of time
subtype: time-delay_measuring_instrument__time-delay_measuring_system chronoscope for measuring the time difference between two events
subtype: colorimeter__tintometer a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents
subtype: counter_tube__countertube a measuring instrument for counting individual ionizing events
subtype: crystal_counter__crystalcounter a counter tube in which an ionizing event increases conductivity
subtype: Geiger_counter__Geiger-Muller_counter counter tube that detects ionizing radiations
subtype: proportional_counter_tube__proportional_counter counter tube whose output pulse is proportional to number of ions produced
subtype: boron_counter_tube__boroncountertube a proportional counter tube for counting neutrons
subtype: scintillation_counter__scintillationcounter counter tube in which light flashes when exposed to ionizing radiation
subtype: craniometer an instrument for measuring skull sizes
subtype: cryoscope a measuring instrument for measuring freezing and melting points
subtype: transit_declinometer__transitdeclinometer__declinometer an instrument for measuring magnetic declination
subtype: densimeter__densitometer a measuring instrument for determining density or specific gravity
subtype: dasymeter densimeter consisting of a thin glass globe that is weighed in a gas to determine its density
subtype: densitometer a measuring instrument for determining optical or photographic density
subtype: microphotometer special kind of densitometer that measures density variations over a very small area
subtype: dosemeter__dosimeter a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)
subtype: dynamometer measuring instrument designed to measure power
subtype: electrodynamometer measuring instrument that uses the interaction of the magnetic fields of two coils to measure current or voltage or power
subtype: electroscope measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
subtype: eudiometer measuring instrument consisting of a graduated glass tube for measuring volume changes in chemical reactions between gases
subtype: gauge__gage a measuring instrument for measuring and indicating a quantity or for testing conformity with a standard
subtype: anemometer__wind_gauge a gauge for recording the speed and direction of wind
subtype: depth_gauge__depthgauge a gauge for measuring the depth of grooves or holes or other concavities
subtype: dipstick a graduated rod dipped into a container to indicate the fluid level
subtype: gasoline_gauge__gas_gauge__gasgauge gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle
subtype: pressure_gauge gauge for measuring and indicating fluid pressure
subtype: manometer a pressure gauge for comparing pressures of a gas
subtype: tensimeter a manometer for measuring vapor pressure
subtype: sphygmomanometer a pressure gauge for measuring blood pressure
subtype: rain_gauge gauge consisting of an instrument to measure the quantity of precipitation
subtype: strain_gauge an gauge for measuring strain in a surface
subtype: surface_gauge__surfacegauge__scribing_block gauge consisting of a scriber mounted on an adjustable stand; used to test the accuracy of plane surfaces
subtype: vacuum_gauge a gauge for indicating negative atmospheric pressure
subtype: water_gauge__watergauge__water_gage__watergage__waterglas gauge for indicating the level of water in e.g. a tank or boiler or reservoir
subtype: water_level.water_gauge a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube
subtype: wire_gauge gauge for measuring the diameter of wire
subtype: graduate a measuring instrument for measuring fluid volume; a glass container (cup or cylinder or flask) whose sides are marked with or divided into amounts
subtype: graduated_cylinder__graduatedcylinder a cylindrical graduate
subtype: gravimeter__gravity_meter__gravitymeter a measuring instrument for measuring variations in the gravitational field of the earth
subtype: hematocrit__haematocrit a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
subtype: hydrometer__gravimeter a measuring instrument for determining the specific gravity of a liquid or solid
subtype: salinometer a hydrometer that determines the concentration of salt solutions by measuring their density
subtype: thermohydrometer__thermogravimeter a hydrometer that includes a thermometer
subtype: hygrometer measuring instrument for measuring the relative humidity of the atmosphere
subtype: hygrodeik a wet and dry bulb hygrometer
subtype: hygroscope hygrometer that shows variations in the relative humidity of the atmosphere
subtype: psychrometer a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air
subtype: dip_circle__dipcircle__inclinometer a measuring instrument for measuring the angle of magnetic dip (as from an airplane)
subtype: integrator__planimeter a measuring instrument for measuring the area of an irregular plane figure
subtype: interferometer any measuring instrument that uses interference patterns to make accurate measurements of waves
subtype: ionization_chamber__ionization_tube a measuring instrument that measures the amount of ionizing radiation
subtype: boron_chamber__boronchamber an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
subtype: Geiger_tube__Geiger-Muller_tube an ionization chamber contained in a tube in a Geiger counter
subtype: katharometer measures thermal conductivity
subtype: Kundt's_tube a measuring instrument used to measure the speed of sound
subtype: log.measuring_instrument measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water
subtype: harpoon_log__harpoonlog a cylindrical log with a device that registers distance
subtype: patent_log__screw_log__screwlog__taffrail_log a torpedo-shaped log with rotary fins that measure the ship's speed
subtype: measuring_stick__measuringstick__measure__measuring_rod__measuringrod measuring instrument having a sequence of marks at regular intervals; used as a reference in making measurements
subtype: board_rule__boardrule a measure used in computing board feet
subtype: ruler__rule measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths
subtype: carpenter's_rule__carpenter'srule a rule used by a carpenter
subtype: foot_rule a ruler one foot long
subtype: meterstick__metrestick a rule one meter long (usually marked off in centimeters and millimeters)
subtype: yard_measure__yardstick a ruler or tape that is three feet long
subtype: size_stick a mechanical measuring stick used by shoe fitters to measure the length and width of your foot
subtype: meter.measuring_instrument any of various measuring instruments for measuring a quantity
subtype: ammeter a meter that measures the flow of electrical current in amperes
subtype: milliammeter a sensitive ammeter graduated in milliamperes
subtype: electrometer meter to measure electrostatic voltage differences; draws no current from the source
subtype: fluxmeter meter that measures magnetic flux by the current it generates in a coil
subtype: galvanometer meter for detecting or comparing or measuring small electric currents
subtype: astatic_galvanometer__astaticgalvanometer has a moving magnet and astatic coils arranged to cancel the effect of the Earth's magnetic field
subtype: moving-coil_galvanometer a galvanometer that is operated by the force exerted by an electric current flowing in a movable coil suspended in a magnetic field
subtype: ballistic_galvanometer__ballisticgalvanometer a moving-coil galvanometer that measures electric charge
subtype: gas_meter__gasmeter__gasometer a meter for measuring the amount of gas flowing through a particular pipe
subtype: magnetometer__gaussmeter an meter to compare strengths of magnetic fields
subtype: odometer__hodometer__mileometer__milometer a meter that shows mileage traversed
subtype: ohmmeter a meter for measuring electrical resistance in ohms
subtype: postage_meter__postagemeter meter for bulk mailings that imprints correct prepaid postage on pieces of mail and records the total charge
subtype: radiometer meter to detect and measure radiant energy (electromagnetic or acoustic)
subtype: Crookes_radiometer electromagnetic radiometer consisting of a small paddlewheel that rotates when placed in daylight
subtype: radiomicrometer radiometer that is extremely sensitive
subtype: Rayleigh_disk an acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity
subtype: reflectometer a meter that measures the reflectance of a surface
subtype: speedometer__speed_indicator__speedindicator a meter fixed to a vehicle that measures and displays its speed
subtype: machmeter speedometer for measuring the speed of an aircraft relative to the speed of sound
subtype: taximeter a meter in a taxi that registers the fare (based on the length of the ride)
subtype: voltmeter meter that measures the potential difference between two points
subtype: electronic_voltmeter a voltmeter whose sensitivity is increased by amplification
subtype: digital_voltmeter__digitalvoltmeter an electronic voltmeter that gives readings in digits
subtype: millivoltmeter sensitive voltmeter that can measure voltage in millivolts
subtype: water_meter__watermeter meter for measuring the quantity of water passing through a particular outlet
subtype: nephoscope a grid-like measuring instrument for measuring the altitude, direction, and velocity of movement of clouds
subtype: octant a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
subtype: oximeter a measuring instrument that measures the oxygen in arterial blood
subtype: pedometer measuring instrument for recording the number of steps taken in walking
subtype: pelvimeter measuring instrument for performing pelvimetry
subtype: photometer measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
subtype: spectrophotometer a photometer for comparing two light radiations wavelength by wavelength
subtype: piezometer a measuring instrument for measuring high pressures
subtype: pipet__pipette measuring instrument consisting of a graduated glass tube used to measure or transfer precise volumes of a liquid by drawing the liquid up into the tube
subtype: eye_dropper__eyedropper__dropper pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
subtype: Pitot-static_tube__Pitot_tube measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed
subtype: Pitot_tube measuring instrument used to measure the velocity of fluid flow
subtype: plethysmograph a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)
subtype: body_plethysmograph plethysmograph consisting of a chamber surrounding the entire body; used in studies of respiration
subtype: digital_plethysmograph__digitalplethysmograph plethysmograph applied to a digit of the hand or foot to measure skin blood flow
subtype: potentiometer a measuring instrument for measuring direct current electromotive forces
subtype: quadrant a measuring instrument for measuring altitude of heavenly bodies
subtype: microwave_radar__microwaveradar__radar__radio_detection_and_ranging__radiodetectionandranging__radiolocation measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
subtype: early_warning_radar__earlywarningradar a radar that is part of an early warning system
subtype: three-dimensional_radar__threedimensionalradar__3d_radar radar that will report altitude as well as azimuth and distance of a target
subtype: weather_radar__weatherradar radar that is able to detect clouds and precipitation
subtype: rangefinder__range_finder__rangefinder a measuring instrument (acoustic or optical or electronic) for finding the distance of an object
subtype: refractometer measuring instrument for measuring the refractive index of a substance
subtype: weighing_machine__scale a measuring instrument for weighing; shows amount of mass
subtype: balance.weighing_machine a scale for weighing; depends on pull of gravity
subtype: beam_balance a balance consisting of a lever with two equal arms and a pan suspended from each arm
subtype: analytical_balance__chemical_balance a beam balance of great precision used in quantitative chemical analysis
subtype: electronic_balance balance that generates a current proportional to displacement of pan
subtype: microbalance balance for weighing very small objects
subtype: spring_balance__spring_scale a balance that measure weight by the tension on a helical spring
subtype: steelyard__lever_scale__leverscale__beam_scale a portable balance consisting of a pivoted bar with arms of unequal length
subtype: weighbridge platform scale flush with a roadway for weighing vehicles and cattle etc
subtype: sclerometer a measuring instrument that measures the hardness of materials by penetrating them with a stylus that has a diamond point
subtype: sector.measuring_instrument measuring instrument consisting of two graduated arms hinged at one end
subtype: seismograph a measuring instrument for detecting and measuring the intensity and direction and duration of of movements of the ground (as an earthquake)
subtype: sensitometer a measuring instrument for measuring the light sensitivity of film over a range of exposures
subtype: sextant a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
subtype: sonar__echo_sounder__asdic a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return (sonar is SOund NAvigation Ranging; asdic is Anti-Submarine Detection Investigation Committee)
subtype: spark_chamber__sparkchamber__spark_counter__sparkcounter measuring instrument that detects ionizing radiation from elementary particles
subtype: spherometer a measuring instrument for measuring the curvature of a surface
subtype: spirograph a measuring instrument for recording the depth and rapidity of breathing movements
subtype: spirometer a measuring instrument for measuring the vital capacity of the lungs
subtype: static_tube a measuring instrument used to measure static pressure in a stream of fluid
subtype: synchroscope__synchronoscoppe__synchronizer an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)
subtype: tachometer__tach measuring instrument for indicating speed of rotation
subtype: tachograph a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle
subtype: tape_measure__tape__tapeline measuring instrument consisting of a narrow strip (cloth or metal) marked in inches or centimeters and used for measuring lengths; "the carpenter should have used his tape measure"
subtype: tensiometer a measuring instrument for measuring the surface tension of a liquid
subtype: wire_tensiometer__tensiometer a measuring instrument for measuring the tension in a wire or fiber or beam
subtype: moisture_tensiometer__tensiometer a measuring instrument for measuring the moisture content of soil
subtype: thermometer measuring instrument for measuring temperature
subtype: alcohol_thermometer__alcoholthermometer__alcohol-in-glass_thermometer thermometer consisting of a glass capillary tube marked with degrees Celsius or Fahrenheit and containing alcohol which rises or falls as it expands or contracts with changes in temperature
subtype: candy_thermometer__candythermometer a thermometer used to determine the temperature of candy syrups during cooking
subtype: Centigrade_thermometer a thermometer calibrated in degrees centigrade
subtype: cryometer a thermometer designed to measure low temperatures
subtype: dry-bulb_thermometer an ordinary thermometer with a dry bulb; used to measure the air temperature
subtype: Fahrenheit_thermometer a thermometer calibrated in degrees Fahrenheit
subtype: gas_thermometer__air_thermometer__airthermometer thermometer that measures temperature by changes in the pressure of a gas kept at constant volume
subtype: maximum_and_minimum_thermometer thermometer that records the highest and lowest temperatures reached during a period of time
subtype: meat_thermometer a thermometer that is inserted into the center of a roast (with the top away from the heat source); used to measure how well done the meat is
subtype: mercury_thermometer__mercurythermometer__mercury-in-glass_thermometer thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube
subtype: Beckman_thermometer a mercury thermometer that measures small differences or changes in temperature
subtype: mercury-in-glass_clinical_thermometer__clinical_thermometer a mercury thermometer designed to measure the temperature of the human body; graduated to cover a range a few degrees on either side of the normal body temperature
subtype: oven_thermometer a thermometer that registers the temperature inside an oven
subtype: pyrometer a thermometer designed to measure high temperatures
subtype: optical_pyrometer__opticalpyrometer__pyroscope a pyrometer that uses the color of the light emitted by a hot object
subtype: pyrometric_cone a pyrometer consisting of a series of cones that melt at different temperatures
subtype: radiation_pyrometer__radiationpyrometer a pyrometer for estimating the temperature of distant sources of heat; radiation is focussed on a thermojunction connected in circuit with a galvanometer
subtype: resistance_pyrometer pyrometer that measures high temperatures by the resistance in a heated wire
subtype: Reaumur_thermometer an alcohol thermometer calibrated in degrees Reaumur
subtype: resistance_thermometer__platinum_thermometer thermometer that measures temperature by changes in the resistance of a spiral of platinum wire
subtype: reversing_thermometer__reversingthermometer a thermometer that registers the temperature in deep waters
subtype: self-registering_thermometer a thermometer that records the temperature automatically
subtype: telethermometer a thermometer that registers the temperature at some distant point
subtype: thermocouple_junction__thermocouple a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
subtype: thermoelectric_thermometer__thermel__electricthermometer a thermometer that uses thermoelectric current to measure temperature
subtype: thermometrograph__thermograph a thermometer that records temperature variations on a graph as a function of time
subtype: thermopile a kind of thermometer for measuring heat radiation; consists of several thermocouple junctions in series
subtype: wet-bulb_thermometer a thermometer with a bulb that is covered with moist muslin; used in a psychrometer to measure humidity
subtype: timepiece__timekeeper a measuring instrument or device for keeping time
subtype: atomic_clock a timepiece that derives its time scale from the vibration of atoms or molecules
subtype: ammonia_clock__ammoniaclock an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule
subtype: caesium_clock__caesiumclock an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field
subtype: clock a timepiece that shows the time of day
subtype: alarm_clock__alarmclock__alarm a clock that wakes sleeper at preset time
subtype: Big_Ben clock in the clock tower of the Houses of Parliament, London
subtype: chronometer an accurate clock (especially used in navigation)
subtype: cuckoo_clock clock that announces the hours with a sound like the call of the cuckoo
subtype: electric_clock a clock using a small electric motor
subtype: pendulum_clock a clock regulated by a pendulum
subtype: grandfather_clock__grandfatherclock__longcase_clock a pendulum clock enclosed in a tall narrow case
subtype: system_clock.clock__systemclock a time-of-day clock in a computer system
subtype: time_clock clock used to record the hours that people work
subtype: turret_clock a clock with more than one dial to show the time in all directions from a tower
subtype: wall_clock a clock mounted on a wall
subtype: water_clock__waterclock__clepsydra__water_glass__waterglas clock that measures time by the escape of water
subtype: sandglass__sandglas timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage
subtype: egg_timer__eggtimer a sandglass that runs for three minutes; used to time the boiling of eggs
subtype: hourglass__hourglas a sandglass that runs for sixty minutes
subtype: sundial timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
subtype: timer a timepiece that measures a time interval and signals its end
subtype: chronograph an accurate timer for recording time
subtype: parking_meter__parkingmeter a coin-operated timer located next to a parking space; depositing money into it entitles you to park your car there for a specified length of time
subtype: stopwatch__stopo_watch__stopowatch a timepiece that can be started or stopped for exact timing (as of a race)
subtype: ticker__watch a small portable timepiece
subtype: analog_watch a watch that represents time by the position of hands on a dial
subtype: digital_watch__digitalwatch a watch with a digital display
subtype: hunting_watch__huntingwatch__hunter a watch with a hinged metal lid to protect the crystal
subtype: pendulum_watch (18th century) a watch with a balance wheel having a fake pendulum attached to it
subtype: pocket_watch a watch that is carried in a small watch pocket
subtype: stem-winder a watch that is wound by turning a knob at the stem
subtype: wristwatch__wrist_watch__wristwatch a watch that is worn strapped to the wrist
subtype: tonometer measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
subtype: torsion_balance__torsionbalance measuring instrument designed to measure small forces by the torsion they exert on a thin wire
subtype: variometer a measuring instrument for measuring variations in a magnetic field
subtype: Venturi_tube a measuring instrument used to measure the rate of flow of a liquid
subtype: viscometer__viscosimeter a measuring instrument for measuring viscosity
subtype: medical_instrument__medicalinstrument instrument used in the practice of medicine
subtype: ballistocardiograph__cardiograph a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles
subtype: bronchoscope a slender tubular instrument used to examine the bronchial tubes
subtype: cardiograph__electrocardiograph medical instrument that records electric currents associated with contractions of the heart
subtype: dialyzer__dialysis_machine a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes
subtype: artificial_kidney__hemodialyzer a machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's body
subtype: diathermy_machine__diathermymachine a medical instrument for local heating of bodily tissues for medical purposes
subtype: microwave_diathermy_machine__microwavediathermymachine diathermy machine that uses microwave radiation as the source of heat
subtype: shortwave_diathermy_machine__shortwavediathermymachine a diathermy machine that uses short wave radiation as the source of heat
subtype: electroencephalograph medical instrument that records electric currents generated by the brain
subtype: electromyograph a medical instrument that records the electrical waves associated with the activity of skeletal muscles
subtype: endoscope a long slender medical instrument for examining the interior of a bodily organ or performing minor surgery
subtype: arthroscope a type of endoscope that is inserted into a joint for visual examination
subtype: colonoscope an elongated fiberoptic endoscope for examining the entire colon from cecum to rectum
subtype: culdoscope a specialized endoscope for visually examining a woman's pelvic organs
subtype: gastroscope a type of endoscope for visually examining the stomach
subtype: laparoscope a slender endoscope inserted through an incision in the abdominal wall in order to examine the abdominal organs or to perform minor surgery
subtype: proctoscope an endoscope for examining the rectum
subtype: flexible_sigmoidoscope__sigmoidoscope an endoscope (a flexible fiberoptic probe) for examining the sigmoid colon
subtype: fiberscope a flexible medical instrument involving fiber optics that is used to examine internal organs
subtype: keratoscope medical instrument to examine the cornea in order to detect irregularities in its anterior surface
subtype: laryngoscope a medical instrument for examining the larynx
subtype: ophthalmoscope medical instrument for examining the retina of the eye
subtype: orthoscope an ophthalmoscope with a layer of water to neutralize the refraction of the cornea
subtype: otoscope medical instrument consisting of a magnifying lens and light; used for examining the external ear (the auditory meatus and especially the tympanic membrane)
subtype: polygraph a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)
subtype: lie_detector__liedetector a polygraph that records bodily changes sometimes associated with lying
subtype: rhinoscope medical instrument consisting of a mirror mounted at an angle on a rod; used to examine the nasal passages (through the nasopharynx)
subtype: speculum a medical instrument for dilating a bodily passage or cavity in order to examine the interior
subtype: stethoscope a medical instrument for listening to the sounds generated inside the body
subtype: fetoscope__foetoscope a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat
subtype: surgical_instrument a medical instrument used in surgery
subtype: curette__curet a surgical instrument shaped like a scoop to remove tissue from a bodily cavity
subtype: dermatome a surgical instrument used to cut very thin slices of skin
subtype: dilater__dilator a surgical instrument that is used to dilate or distend an opening or an organ
subtype: hemostat__haemostat a surgical instrument that stops bleeding by clamping the blood vessel
subtype: photocoagulator surgical instrument containing a laser for use in photocoagulation
subtype: probe.surgical_instrument a flexible slender surgical instrument used to explore wounds or body cavities
subtype: retractor surgical instrument that holds back the edges of a surgical incision
subtype: snare.surgical_instrument a surgical instrument consisting of wire hoop that can be drawn tight around the base of polyps or small tumors to sever them; used especially in body cavities
subtype: surgical_knife a very sharp knife used in surgery
subtype: catling a long double-edged knife used for amputations
subtype: lancet__lance a surgical knife with a pointed double-edged blade; used for punctures and small incisions
subtype: scalpel a thin straight surgical knife used in dissection and surgery
subtype: trephine__trepan a surgical instrument used to remove sections of bone from the skull
subtype: syringe a medical instrument used to inject or withdraw fluids
subtype: douche_bag__douche a small syringe with detachable nozzles; used for vaginal lavage and enemas
subtype: hypodermic_syringe__hypodermic__hypo a piston syringe that is fitted with a hypodermic needle for giving injections
subtype: thermograph medical instrument that uses an infrared camera to reveal temperature variations on the surface of the body
subtype: musical_instrument__musicalinstrument an instrument used to produce music
subtype: barrel_organ__grind_organ__hand_organ__hurdy_gurdy__street_organ a musical instrument that makes music by rotation of a cylinder studded with pegs
subtype: bass.musical_instrument__bas the member with the lowest range of a family of musical instruments
subtype: bass_fiddle__bass_viol__bull_fiddle__double_bass__contrabass__string_bass largest and lowest member of the violin family
subtype: bass_horn__sousaphone__Sousaphone__tuba the lowest brass wind instrument
subtype: euphonium a bass horn (brass wind instrument) that is the tenor of the tuba family
subtype: helicon__bombardon a tuba that coils over the shoulder of the musician
subtype: bombardon__bombard a large shawm; the bass member of the shawm family
subtype: calliope__steam_organ__steamorgan a musical instrument consisting of a series of steam whistles played from a keyboard
subtype: celesta a musical instrument consisting of graduated steel plates that are struck by hammers activated by a keyboard
subtype: electronic_instrument a musical instrument that generates sounds electronically
subtype: electric_organ__electronic_organ__Hammond_organ__organ (music) an electronic simulation of a pipe organ
subtype: synthesizer (music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments
subtype: Jew's_harp__jew's_harp__jew'sharp__Jews'_harp__jews'_harp__jews'harp__mouth_bow__mouthbow a small lyre-shaped musical instrument that is placed between the teeth and played by twanging a wire tongue while changing the shape of the mouth cavity
subtype: music_box__musicbox__musical_box__musicalbox produces music by means of pins on a revolving cylinder that strike the tuned teeth of a comb-like metal plate
subtype: percussion_instrument__percussive_instrument a musical instrument in which the sound is produced by one object striking another
subtype: bones__bone__castanets__castanet__clappers__finger_cymbals__maraca a percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance
subtype: chime__bell__gong a percussion instrument consisting of vertical metal tubes of different lengths that are struck with a hammer
subtype: carillon set of bells hung in a bell tower
subtype: handbell a bell that is held in the hand
subtype: cymbal a percussion instrument consisting of a concave brass disk; makes a loud crashing sound when hit with a drumstick or when two are struck together
subtype: high-hat_cymbal__high_hat cymbals that are operated by a foot pedal
subtype: zill one of a pair of small metallic cymbals worn on the thumb and middle finger; used in belly dancing in rhythm with the dance
subtype: membranophone__drum__tympan a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretch across each end
subtype: bass_drum__gran_casa a large drum with two heads; makes a sound of indefinite but very low pitch
subtype: bongo_drum__bongodrum__bongo a small drum; played with the hands
subtype: snare_drum__snaredrum__snare__side_drum a small drum with two heads and a snare stretched across the lower head
subtype: tabor__tabour a small drum with one head of soft calfskin
subtype: tambour a drum
subtype: tambourine a shallow drum with a single drumhead and with metallic disks in the sides
subtype: tenor_drum__tenordrum any of various drums with small heads
subtype: timbrel small hand drum similar to a tambourine; formerly carried by itinerant jugglers
subtype: glockenspiel__orchestral_bells a percussion instrument consisting of a set of graduated metal bars mounted on a frame and played with small hammers
subtype: gong__tam-tam__tamtam a percussion instrument consisting of a metal plate that is struck with a soft-headed drumstick
subtype: kettledrum__kettle__tympanum__tympani__timpani a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
subtype: marimba__xylophone a percussion instrument with wooden bars tuned to produce a chromatic scale and with resonators; played with small mallets
subtype: forte-piano__fortepiano__piano__pianoforte a stringed instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds
subtype: grand_piano__grandpiano__grand a piano with the strings on a harp-shaped frame; usually supported by 3 legs
subtype: baby_grand_piano__baby_grand__parlor_grand__parlor_grand_piano__parlour_grand__parlourgrand__parlour_grand_piano__parlourgrandpiano a small grand piano
subtype: concert_grand__concertgrand__concert_piano__concertpiano a grand piano suitable for concert performances
subtype: mechanical_piano__Pianola__player_piano a mechanically operated piano that uses a roll of perforated paper to activate the keys
subtype: upright_piano__uprightpiano__upright a piano with a vertical sounding board
subtype: spinet.upright_piano small and compactly built upright piano
subtype: steel_drum__steeldrum a concave percussion instrument made from the metal top of an oil drum; has an array of flattened areas that produce different tones when struck (of Caribbean origin)
subtype: triangle a percussion instrument consisting of a metal bar bent in the shape of an open triangle
subtype: vibraphone__vibraharp__vibes__vibe an percussion instrument similar to a xylophone but having metal bars and rotating disks in the resonators that produce a vibrato sound
subtype: stringed_instrument a musical instrument in which taut strings provide the source of sound
subtype: banjo a stringed instrument of the guitar family that has long neck and circular body
subtype: bowed_stringed_instrument__string stringed instruments that are played with a bow; "the strings played superlatively well"
subtype: bass_fiddle__bass_viol__bull_fiddle__double_bass__contrabass__string_bass largest and lowest member of the violin family
subtype: cello a large stringed instrument; seated player holds it upright while playing
subtype: viol any of a family of bowed stringed instruments that preceded the violin family
subtype: viola_da_braccio a member of the viol family with approximately the range of a viola
subtype: viola_da_gamba__bass_viol viol that is the bass member of the viol family with approximately the range of the cello
subtype: viola_d'amore__violad'amore viol that is the tenor of the viol family
subtype: viola.bowed_stringed_instrument a bowed stringed instrument slightly larger than a violin, tuned a fifth lower
subtype: violin__fiddle bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow
subtype: Amati a violin made by a member of the Amati family
subtype: Guarnerius a violin made by a member of the guarneri family
subtype: Stradavarius__Strad a violin made by Antonio Stradivari or a member of his family
subtype: chordophone a stringed instrument of the group including harps, lutes, lyres, and zithers
subtype: balalaika a stringed instrument that has triangular body and three strings
subtype: harp a chordophone that has a triangular frame consisting of a sounding board and a pillar and a curved neck; the strings stretched between the neck and the soundbox are plucked with the fingers
subtype: aeolian_harp__aeolianharp__aeolian_lyre__aeolianlyre__wind_harp a harp having strings tuned in unison; they sound when wind passes over them
subtype: lyre a harp used by ancient Greeks for accompaniment
subtype: lute chordophone consisting of a plucked instrument having a pear-shaped body, a usually bent neck, and a fretted fingerboard
subtype: mandolin a stringed instrument related to the lute, usually played with a plectrum
subtype: mandola an early type of mandolin
subtype: clavichord an early stringed instrument like a piano but with more delicate sound
subtype: clavier__Klavier a stringed instrument that has a keyboard
subtype: harpsichord a clavier with strings that are plucked by plectra mounted on pivots
subtype: spinet early model harpsichord with only one string per note
subtype: pair_of_virginals__virginal a legless rectangular harpsichord; played (usually by women) in the 16th and 17th centuries
subtype: dulcimer.stringed_instrument a stringed instrument used in American folk music; an elliptical body and a fretted fingerboard and three strings
subtype: guitar a stringed instrument usually having six strings; played by strumming or plucking
subtype: acoustic_guitar sound is not amplified by electrical means
subtype: electric_guitar a guitar whose sound is amplified by electrical means
subtype: gittern medieval musical instrument resembling a guitar
subtype: Hawaiian_guitar__steel_guitar__steelguitar guitar whose steel strings are twanged while being pressed with a movable steel bar for a glissando effect
subtype: uke__ukulele (Hawaiian) a small guitar having four strings
subtype: koto Japanese stringed instrument that resembles a zither; has a rectangular wooden sounding box and silk strings that are plucked with the fingers
subtype: forte-piano__fortepiano__piano__pianoforte a stringed instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds
subtype: psaltery an ancient stringed instrument similar to the lyre or zither but having a trapezoidal sounding board under the strings
subtype: samisen Japanese stringed instrument resembling a banjo with a long neck and a fretted fingerboard and a rectangular soundbox
subtype: sitar a stringed instrument of India; has a long neck and movable frets
subtype: zither__cither__zithern a musical stringed instrument with strings stretch over a flat sounding box; played with a plectrum and with fingers
subtype: dulcimer a trapezoidal zither whose metal strings are struck with light hammers
subtype: wind_instrument__wind a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath
subtype: bagpipe__pipes__pipe a wind instrument; the player blows air into a bag and squeezes it out through pipes
subtype: musette__shepherd's_pipe a small bagpipe formerly popular in France
subtype: brass.wind_instrument__bras a wind instrument that consists of a brass tube (usually of variable length) blown by means of a cup-shaped or funnel-shaped mouthpiece
subtype: baritone_horn__baritone the second lowest brass wind instrument
subtype: bass_horn__sousaphone__Sousaphone__tuba the lowest brass wind instrument
subtype: bugle a brass instrument without valves; used for military calls and fanfares
subtype: clarion a medieval brass instrument with a clear shrill tone
subtype: cornet__horn__trumpet a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves
subtype: serpent an obsolete bass cornet; resembles a snake
subtype: flugelhorn__fluegelhorn a brass instrument resembling a cornet but with a wider bore
subtype: French_horn__horn a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves
subtype: saxhorn any of a family of brass wind instruments that resemble a bugle with valves
subtype: trombone a brass instrument consisting of a long tube whose length can be varied by a U-shaped slide
subtype: sackbut a medieval musical instrument resembling a trombone
subtype: free-reed_instrument a wind instrument with a free reed
subtype: piano_accordion__pianoaccordion__accordion__squeeze_box__squeezebox a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player
subtype: American_organ a free-reed instrument in which air is drawn in through reeds by suction bellows
subtype: concertina.free-reed_instrument free-reed instrument played like an accordion by pushing its ends together to force air through the reeds
subtype: harmonica__mouth_organ__mouthorgan__harp__mouth_harp__mouthharp a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole
subtype: harmonium__organ__reed_organ a free-reed instrument in which air is forced through the reeds by bellows
subtype: kazoo a toy wind instrument that has a membrane that makes a sound when you hum into the mouthpiece
subtype: ocarina__sweet_potato__sweetpotato egg-shaped terra-cotta wind instrument with a mouthpiece and finger holes
subtype: pipe_organ__organ wind instrument whose sound is produced by means of pipes arranged in sets supplied with air from a bellows and controlled from a large complex musical keyboard
subtype: organ_pipe__organpipe__pipe__pipework the flues and stops on a pipe organ
subtype: flue_pipe__flue__labial_pipe organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip
subtype: organ_stop__organstop a graduated set of organ pipes of like tone quality
subtype: diapason_stop__diapason either of the two main stops on a pipe organ
subtype: dulciana the organ stop having a tone of soft sweet string quality
subtype: flue_stop an organ stop with the tone of a flue pipe
subtype: reed_stop an organ stop with the tone of a reed instrument
subtype: vox_humana__voxhumana an organ reed stop producing tones imitative of the human voice
subtype: sourdine an organ stop resulting in a soft muted sound
subtype: vox_angelica__voxangelica__voix_celeste an organ stop producing a gentle tremolo effect
subtype: reed_pipe organ pipe with a vibrating reed
subtype: panpipe__pandean_pipe__pandeanpipe__syrinx a primitive wind instrument consisting of several parallel pipes bound together
subtype: tabor_pipe__taborpipe__pipe a tubular wind instrument
subtype: chanter__melody_pipe reed pipe with finger holes on which the melody is played
subtype: drone_pipe__dronepipe__drone__bourdon a pipe of the bagpipe that is tuned to produce a single continuous tone
subtype: pitch_pipe__pitchpipe a small pipe sounding a tone of standard frequency; used to establish the starting pitch for unaccompanied singing
subtype: post_horn wind instrument used by postilions of the 18th and 19th centuries
subtype: woodwind_instrument__woodwind__wood any wind instrument other than the brass instruments
subtype: beating-reed_instrument__reed a musical instrument that sounds by means of a reed
subtype: double-reed_instrument a woodwind that has a double reed
subtype: bassoon a double-reed instrument; the tenor of the oboe family
subtype: contrabassoon__contrafagotto__double_bassoon the bassoon that is the largest instrument in the oboe family
subtype: tenoroon a tenor bassoon; pitched a fifth higher than the ordinary bassoon
subtype: English_horn__cor_anglais__coranglai a double-reed woodwind instrument similar to an oboe but lower in pitch
subtype: krummhorn__crumhorn__cromorne a Renaissance woodwind with a double reed and a curving tube (crooked horn)
subtype: oboe__hautboy__hautbois a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece
subtype: heckelphone__basset_oboe a oboe pitched an octave below the ordinary oboe
subtype: musette_pipe__musettepipe a small simple oboe
subtype: oboe_da_caccia an alto oboe; precursor of the English horn
subtype: oboe_d'amore a oboe pitched a minor third lower than the ordinary oboe; used to perform baroque music
subtype: shawm a medieval oboe
subtype: bombardon__bombard a large shawm; the bass member of the shawm family
subtype: free-reed a reed that does not fit closely over the aperture
subtype: single-reed_instrument__single-reed_woodwind a beating-reed instrument with a single reed (as a clarinet or saxophone)
subtype: clarinet a single-reed instrument with a straight tube
subtype: bass_clarinet a large clarinet whose range is an octave below the B-flat clarinet
subtype: basset_horn a tenor clarinet; pitched in the key of F below the B-flat clarinet
subtype: B-flat_clarinet__licorice_stick the ordinary clarinet with a middle range
subtype: pibgorn__hornpipe__stockhorn an ancient (now obsolete) single-reed woodwind; usually made of bone
subtype: sax__saxophone a single-reed woodwind with a conical bore
subtype: fipple_flute__fipple_pipe__recorder__vertical_flute a woodwind with a vertical pipe and 8 finger holes and a whistle mouthpiece
subtype: treble_recorder__flageolet__shepherd'spipe a small fipple flute with with four finger holes and two thumb holes
subtype: pennywhistle__tin_whistle__tinwhistle__whistle an inexpensive fipple flute
subtype: transverse_flute__flute a high-pitched woodwind instrument; a slender tube closed at one end with finger holes on one end and an opening near the closed end across which the breath is blown
subtype: fife a small high-pitched flute similar to a piccolo; has a shrill tone and is used chiefly to accompany drums in a marching band
subtype: nose_flute a flute that is played by blowing through the nostrils (used in some Asian countries)
subtype: piccolo a small flute; pitched an octave above the standard flute
subtype: navigational_instrument an instrument used for navigating
subtype: artificial_horizon__gyro_horizon__flight_indicator a navigational instrument based on a gyroscope; provides an artificial horizon for the pilot
subtype: compass__compas navigational instrument for finding directions
subtype: gyrocompass__gyrocompas a compass that does not depend on magnetism but uses a gyroscope instead
subtype: magnetic_compass compass based on an indicator (as a magnetic needle) that points to the magnetic north
subtype: compass_card__compasscard__mariner'scompas compass in the form of a card that rotates so that 0 degrees or North points to magnetic north
subtype: depth_finder__depthfinder navigational instrument used to measure the depth of a body of water (as by ultrasound or radar)
subtype: sonic_depth_finder__sonicdepthfinder__fathometer depth finder for determining depth of water or a submerged object by means of ultrasound waves
subtype: inclinometer an instrument showing the angle that an aircraft makes with the horizon
subtype: sonar__echo_sounder__asdic a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return (sonar is SOund NAvigation Ranging; asdic is Anti-Submarine Detection Investigation Committee)
subtype: optical_instrument__opticalinstrument an instrument designed to aid vision
subtype: binocular__fieldglasse__operaglasse an optical instrument designed for simultaneous use by both eyes
subtype: esophagoscope__oesophagoscope an optical instrument for examining the inside of the esophagus
subtype: jeweler's_glass an optical instrument used by jewelers; has one or more lenses and is used to view features not readily seen
subtype: periscope an optical instrument that provides a view of an otherwise obstructed field
subtype: projector an optical instrument that projects an enlarged image onto a screen
subtype: epidiascope a projector for images for both transparent and opaque objects
subtype: movie_projector__cine_projector__film_projector projects successive frames from a reel of film to create moving pictures
subtype: bioscope a kind of early movie projector
subtype: overhead_projector a projector operated by a speaker; projects the image over the speaker's head
subtype: slide_projector__slideprojector projector that projects an enlarged image of a slide onto a screen
subtype: magic_lantern__magiclantern an early form of slide projector
subtype: sight.optical_instrument a optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
subtype: bombsight a sighting device in an aircraft for aiming bombs
subtype: gunsight a sight used for aiming a gun
subtype: battlesight an arrangement of sights that makes possible the rapid aiming of a firearm at short ranges
subtype: open_sight rear gunsight having an open notch instead of a peephole or telescope
subtype: panoramic_sight__panoramicsight gunsight (a telescopic device for an artillery piece) that can be rotated horizontally in a full circle
subtype: peep_sight rear gunsight having an adjustable eyepiece with a small aperture through which the front sight and the target are aligned
subtype: telescopic_sight__telescope_sight gunsight consisting of a telescope on a firearm for use as a sight
subtype: spectacles__specs__spec__eyeglasses__glasses optical instrument consisting of a pair of lenses for correcting defective vision
subtype: goggles spectacles worn to protect the eyes
subtype: lorgnette eyeglasses that are held to the eyes with a long handle
subtype: pince-nez__pincenez spectacles clipped to the nose by a spring
subtype: sunglasses__dark_glasses__shades spectacles that are darkened or polarized to protect the eyes from the glare of the sun; "he was wearing a pair of mirrored shades"
subtype: prism_spectroscope__prismspectroscope__spectroscope an optical instrument for spectrographic analysis
subtype: mass_spectrometer__spectrometer spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer
subtype: mass_spectrograph a mass spectrometer that produces a graphical representation of the mass spectrum
subtype: spectrograph a spectroscope by which spectra can be photographed
subtype: sound_spectrograph__soundspectrograph a spectrograph for acoustic spectra
subtype: plotter an instrument (usually driven by a computer) for drawing graphs or pictures
subtype: scientific_instrument an instrument used by scientists
subtype: particle_accelerator__accelerator__atom_smasher a scientific instrument that increases the kinetic energy of charged particles
subtype: betatron__induction_accelerator__inductionaccelerator accelerates a continuous beam of electrons to high speeds by means of the electric field produced by changing magnetic flux
subtype: charge-exchange_accelerator an accelerator in which high-energy ions escape from plasma following charge exchange
subtype: Cockcroft_and_Walton_accelerator__Cockcroft-Walton_accelerator__Cockcroft_and_Walton_voltage_multiplier__Cockcroft-Walton_voltage_multiplier a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube
subtype: collider an accelerator in which two beams of particles are forced to collide head on
subtype: electron_accelerator collider that consists of an accelerator that collides electrons and positrons
subtype: proton_accelerator a collider that collides beams of protons and antiprotons
subtype: superconducting_supercollider__superconductingsupercollider a collider that operates at very low temperatures
subtype: cyclotron an accelerator that imparts energies of several million electron-volts to rapidly moving particles
subtype: bevatron a cyclotron that accelerates protons up to several billion electron volts
subtype: synchrocyclotron cyclotron that achieves relativistic velocities by modulating the frequency of the accelerating electric field
subtype: synchrotron cyclotron in which the electric field is maintained at a constant frequency
subtype: cosmotron a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons
subtype: linear_accelerator__linac ions are accelerated along a linear path by voltage differences on electrodes along the path
subtype: microwave_linear_accelerator linear accelerator that uses microwaves
subtype: armillary_sphere__armillarysphere model of the celestial sphere; used by early astronomers to determine the positions of stars
subtype: console.scientific_instrument a scientific instrument consisting of displays and an input device that an operator can use to monitor and control a system (especially a computer system)
subtype: hodoscope (physics) scientific instrument that traces the path of a charged particle
subtype: kicksorter__pulse_height_analyzer scientific instrument consisting of an electronic circuit that permits only voltage pulses of predetermined height to pass
subtype: kymograph__cymograph scientific instrument consisting of a rotating drum holding paper on which a stylus traces a continuous record (as of breathing or blood pressure)
subtype: magnifier a scientific instrument that magnifies an image
subtype: microscope magnifier of the image of small objects; "the invention of the microscope led to the discovery of the cell"
subtype: electron_microscope a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
subtype: field-emission_microscope electron microscope used to observe the surface structure of a solid
subtype: light_microscope__lightmicroscope microscope consisting of an optical instrument that magnifies the image of an object
subtype: binocular_microscope__binocularmicroscope a light microscope adapted to the use of both eyes
subtype: operating_microscope__operatingmicroscope binocular microscope used in surgery to provide a clear view of small and inaccessible parts of the body (as in microsurgery)
subtype: compound_microscope light microscope that has two converging lens systems: the objective and the eyepiece
subtype: simple_microscope__hand_glass__magnifying_glass light microscope consisting of a single convex lens that is used to produce an enlarged image
subtype: jeweler's_loupe__jeweler'sloupe__loupe small magnifying glass (usually set in an eyepiece) used by jewelers and horologists
subtype: ultramicroscope__dark-field_microscope light microscope that uses scattered light to show particles too small to see with ordinary microscopes
subtype: telescope__scope a magnifier of images of distant objects
subtype: astronomical_telescope any telescope designed to collect and record electromagnetic radiation from cosmic sources
subtype: optical_telescope__opticaltelescope an astronomical telescope designed to collect and record light from cosmic sources
subtype: reflecting_telescope__reflector optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece
subtype: Cassegrainian_telescope__Gregorian_telescope a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror
subtype: coude_telescope__coudetelescope__coude_system__coudesystem a reflecting telescope so constructed that the light is led to a plate holder or spectrograph
subtype: Herschelian_telescope__off-axis_reflector a reflecting telescope with the mirror slightly tilted to throw the image to the side where it can be viewed
subtype: Maksutov_telescope reflecting telescope in which the aberration of the concave mirror is reduced by a meniscus lens
subtype: Newtonian_telescope__Newtonian_reflector reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis
subtype: Schmidt_telescope__Schmidt_camera reflecting telescope that has plate that corrects for aberration so a wide area of sky can be photographed
subtype: refracting_telescope optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
subtype: field_glass__fieldglas__glass__glas__spyglas a small refracting telescope
subtype: Galilean_telescope a type of refracting telescope that is no longer used in astronomy
subtype: radio_telescope__radiotelescope__radio_reflector__radioreflector astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources
subtype: radio_interferometer__radiointerferometer radio telescope that uses interference patterns from two antennas instead of a parabolic antenna
subtype: collimator.telescope a small telescope attached to a large telescope to use in setting the line of the larger one
subtype: solar_telescope__solartelescope a telescope designed to make observations of the sun
subtype: transit_instrument__transitinstrument a telescope mounted on an axis running east and west and used to time the transit of a celestial body across the meridian
subtype: microtome scientific instrument that cuts thin slices of something for microscopic examination
subtype: stroboscope__strobe__strobe_light scientific instrument that provides a flashing light synchronized with the periodic movement of an object; can make moving object appear stationary
subtype: tachistoscope__t-scope__tscope scientific instrument used by psychologists; presents visual stimuli for brief exposures
subtype: telemeter any scientific instrument for observing events at a distance and transmitting the information back to the observer
subtype: surveying_instrument__surveyinginstrument__surveyor's_instrument an instrument used by surveyors
subtype: alidade__alidad surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
subtype: alidad__alidade surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
subtype: clinometer__inclinometer an instrument used by surveyors in order to measure an angle of inclination or elevation
subtype: plane_table__planetable surveying instrument consisting of a drawing board and a ruler that are mounted on a tripod; used to sight and map topographical details
subtype: range_pole__rangepole__ranging_pole__rangingpole__flagpole surveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wide; used for sightings by surveyors
subtype: surveyor's_level surveying instrument consisting basically of a small telescope with an attached spirit level rotating around a vertical axis; for measuring relative heights of land
subtype: Abney_level a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target
subtype: Dumpy_level a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level
subtype: theodolite__transit a surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod
subtype: tachymeter__tacheometer a theodolite designed for rapid measurements
subtype: tracer.instrument an instrument used to make tracings
subtype: weapon__weapon_system__arm instrument used in fighting or hunting; "he was licensed to carry a weapon"
subtype: bow.weapon_system curved piece of resilient wood with taut cord to propel arrows
subtype: crossbow a bow fixed transversely on a wooden stock grooved to direct the arrow (quarrel)
subtype: Cupid's_bow a curved bow with reversed curve ends
subtype: handbow a bow drawn by hand as distinguished from a crossbow
subtype: longbow a powerful wooden bow drawn by hand; usually 5-6 feet long; used in medieval England
subtype: bow_and_arrow__bowandarrow a weapon consisting of arrows and the bow to shoot them
subtype: brass_knucks__knucks__brass_knuckles__knuckles__knuckle_duster__knuckleduster a small metal weapon; worn over the knuckles on the back of the hand
subtype: fire_ship a weapon consisting of a ship carrying explosives that is set adrift to destroy enemy ships
subtype: flamethrower a weapon that squirts ignited fuel for several yards
subtype: gun a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
subtype: air_gun__airgun__airgun a gun that propels a projectile by compressed air
subtype: BB_gun an air gun in which pellets are propelled by air pressure
subtype: antiaircraft_gun__antiaircraft__flak__flack__pom-pom__pompom__ack-ack__ackack__ack-ack_gun__ackackgun artillery designed to shoot upward at airplanes
subtype: Bofors_gun an automatic double-barreled antiaircraft gun
subtype: breechloader a gun that is loaded at the breech
subtype: cannon.gun heavy automatic gun fired from an airplane
subtype: firearm__piece__small-arm__smallarm a portable gun; "he wore his firearm in a shoulder holster"
subtype: autoloader a firearm that reloads itself
subtype: automatic_firearm__automaticfirearm a firearm that reloads itself and keeps firing until the trigger is released
subtype: automatic_pistol__automaticpistol__automatic a pistol that will keep firing until the ammunition is gone or the trigger is released
subtype: automatic_rifle__automaticrifle__automatic__machine_rifle__machinerifle light machine gun
subtype: assault_rifle any of the automatic rifles with large magazines designed for military use
subtype: Browning_automatic_rifle__BAR a portable .30 caliber magazine-fed automatic rifle operated by gas pressure; used by United States troops in World Wars I and II and in the Korean War
subtype: semiautomatic_firearm__semiautomaticfirearm an autoloader that fires only one shot at each pull of the trigger
subtype: Garand_rifle__Garand__M-1__M-1_rifle a semiautomatic rifle
subtype: semiautomatic_pistol__semiautomaticpistol__semiautomatic a pistol that is a semiautomatic firearm
subtype: Luger (trademark) a German semiautomatic pistol
subtype: machine_gun__machinegun a rapidly firing automatic gun (often mounted)
subtype: automatic_rifle__automaticrifle__automatic__machine_rifle__machinerifle light machine gun
subtype: Browning_machine_gun a belt-fed machine gun capable of firing more than 500 rounds per minute; used by United States troops in World War II and the Korean War
subtype: Gatling_gun an early form of machine gun having several barrels that fire in sequence as they are rotated
subtype: Maxim_gun an obsolete water-cooled machine gun having a single barrel
subtype: Spandau a German machine gun
subtype: submachine_gun machine gun that is a portable automatic firearm
subtype: Bren_gun__Bren a submachine gun operated by gas pressure; used by the British in World War II
subtype: burp_gun__machine_pistol__machinepistol a fully automatic pistol; a small submachine gun
subtype: Kalashnikov a type of submachine gun made in Russia
subtype: light_machine_gun__lightmachinegun a submachine gun not greater than .30 millimeter
subtype: Tommy_gun__Thompson_submachine_gun a .45-caliber submachine gun
subtype: Uzi a type of submachine gun that is designed and manufactured in Israel; "the Uzi is the weapon of choice for America's crack pedlars"
subtype: muzzle_loader a firearm that is load through the muzzle
subtype: arquebus__harquebus__harquebu__hackbut__hagbut an obsolete firearm with a long barrel
subtype: firelock__flintlock a muzzle loader having a flintlock type of gunlock
subtype: musket a muzzle-loading shoulder gun with a long barrel; formerly used by infantrymen
subtype: blunderbuss a short musket of wide bore with a flared muzzle
subtype: fusil a light flintlock musket
subtype: matchlock an early style of musket; had a slow burning wick that could be lowered into a hole in the breech to ignite the charge
subtype: pistol__handgun__side_arm__shooting_iron a firearm that is held and fired with one hand
subtype: automatic_pistol__automaticpistol__automatic a pistol that will keep firing until the ammunition is gone or the trigger is released
subtype: derringer a pocket pistol of large caliber with a short barrel
subtype: forty-five__fortyfive a .45-caliber pistol
subtype: gat (slang) a gangster's pistol
subtype: horse_pistol__horsepistol__horsepistol a large pistol (usually in a holster) formerly carried by horsemen
subtype: peacekeeper the pistol of a law officer in the old West
subtype: revolver__six-gun__sixgun__six-shooter__sixshooter a pistol with a revolving cylinder (usually having six chambers for bullets)
subtype: Colt (trademark) a kind of revolver
subtype: Saturday_night_special a cheap handgun that is easily obtained
subtype: semiautomatic_pistol__semiautomaticpistol__semiautomatic a pistol that is a semiautomatic firearm
subtype: Very_pistol__Verey_pistol a pistol for firing Very-light flares
subtype: zip_gun__zipgun a crude homemade pistol
subtype: repeating_firearm__repeatingfirearm__repeater a firearm that can fire several rounds without reloading
subtype: Mauser trademark for a repeating rifle or pistol
subtype: rifle a shoulder firearm with a long barrel and a rifled bore; "he lifted the rifle to his shoulder and fired"
subtype: carbine light automatic rifle
subtype: Garand_rifle__Garand__M-1__M-1_rifle a semiautomatic rifle
subtype: Winchester (trade mark) a shoulder rifle
subtype: shotgun__scattergun firearm that is a double-barreled smoothbore shoulder weapon for firing shot at short ranges
subtype: fowling_piece__fowlingpiece a light shotgun used for fowling
subtype: sawed-off_shotgun__sawedoffshotgun a shotgun with short barrels
subtype: .22__twenty-two a .22 caliber firearm (pistol or rifle)
subtype: twenty-two_pistol a .22-caliber pistol
subtype: twenty-two_rifle a .22-caliber rifle
subtype: gas_gun__gasgun a gun that fires gas shells
subtype: minute_gun gun that is discharged once every minute (usually as part of a military funeral)
subtype: Quaker_gun a dummy gun or piece of artillery made usually of wood
subtype: set_gun__setgun__spring_gun a gun that is set to fire on any intruder that comes in contact with the wire that sets it off
subtype: whaling_gun__whalinggun a gun (or device resembling a gun) for discharging a projectile (especially a harpoon) at a whale
subtype: knife.weapon_system a weapon with a handle and blade with a sharp point
subtype: bayonet a knife that can be fixed to the end of a rifle and used as a weapon
subtype: sticker a short knife with a pointed blade used for piercing or stabbing
subtype: dirk (Scottish) a long dagger with a straight blade
subtype: poniard__bodkin a dagger with a slender blade
subtype: stiletto a small dagger with a tapered blade
subtype: flick-knife__flickknife a knife with the blade hidden in the handle; the blade springs out when a button is pressed
subtype: machete__panga a large heavy knife used in Central and South America as a weapon or for cutting vegetation
subtype: shiv a knife used as a weapon
subtype: trench_knife a knife with a double-edged blade for hand-to-hand fighting
subtype: yataghan a long Turkish knife with a curved blade having a single edge
subtype: nuclear_weapon__nuclearweapon a weapon of mass destruction whose explosive power derives from a nuclear reaction
subtype: atom_bomb__atomic_bomb__A-bomb__fission_bomb__fissionbomb__plutonium_bomb__plutoniumbomb a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element (uranium 235 or plutonium 239))
subtype: neutron_bomb__neutronbomb atom bomb that produces lethal neutrons with less blast
subtype: hydrogen_bomb__H-bomb__fusion_bomb__thermonuclear_bomb__thermonuclearbomb a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium
subtype: megaton_bomb__megatonbomb a nuclear weapon with an explosive power equivalent to one million tons of TNT
subtype: pike.weapon_system medieval weapon consisting of a spearhead attached to a long pole or pikestaff; superseded by the bayonet
subtype: halberd a pike fitted with an ax head
subtype: partizan__partisan a pike with a long tapering double-edged blade with lateral projections; 16th and 17th centuries
subtype: vouge a kind of pike used by foot soldiers in the 14th century
subtype: projectile__missile a weapon that is thrown or projected
subtype: arrow a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other; intended to be shot from a bow
subtype: broad_arrow an arrow with a wide barbed head
subtype: butt_shaft an arrow without a barb; a target arrow
subtype: quarrel an arrow that is shot from a crossbow; has a head with four edges
subtype: throwing_stick__boomerang__throw_stick (Australian) a curved piece of wood; when properly thrown will return to thrower
subtype: kylie__kiley an Australian boomerang; one side flat and the other convex
subtype: bullet__slug a projectile that is fired from a gun
subtype: dumdum_bullet__dumdum a soft-nosed small-arms bullet that expands when it hits a target and causes a gaping wound
subtype: rifle_ball__rifleball a bullet designed to be fired from a rifle; no longer made spherical in shape
subtype: cannonball__cannon_ball__round_shot__roundshot a solid projectile that in former times was fired from a cannon
subtype: dart.projectile a small narrow pointed missile that is thrown or shot
subtype: banderilla a decorated dart that is implanted in the neck or shoulders of the bull during a bull fight
subtype: seeker a missile equipped with a device that is attracted toward some kind of emission (heat or light or sound or radio waves)
subtype: shot.projectile__pellet a solid missile discharged from a firearm; "the shot buzzed past his ear"
subtype: BB_shot__BB a small pellet fired from an air rifle or BB gun
subtype: bird_shot__buckshot__duck_shot small lead shot for shotgun shells
subtype: grapeshot a cluster of small projectiles fired together from a cannon to produce a hail of shot
subtype: musket_ball__ball a solid ball shot by a musket; "they had to carry a ramrod as well as powder and ball"
subtype: spitball a projectile made by chewing a piece of paper and shaping it into a sphere
subtype: spear__lance__shaft a long pointed rod used as a weapon
subtype: assegai__assagai the slender spear of the Bantu-speaking people of Africa
subtype: javelin a spear thrown as a weapon or in competitive field events
subtype: trident a spear with three prongs
subtype: sword__blade__brand__steel a cutting or thrusting weapon with a long blade
subtype: backsword a sword with only one cutting edge
subtype: broadsword a sword with a broad blade and (usually) two cutting edges; used to cut rather than stab
subtype: claymore a large double-edged broadsword; formerly used by Scottish Highlanders
subtype: cavalry_sword__cavalrysword__saber__sabre a stout sword with a curved blade and thick back
subtype: scimitar a curved oriental saber; the edge is on the convex side of the blade
subtype: cutlas__cutlass__cutlas a short heavy curved sword with one edge; formerly used by sailors
subtype: Excalibur the legendary sword of King Arthur
subtype: falchion a short broad slightly convex medieval sword with a sharp point
subtype: fencing_sword__fencingsword a sword used in the sport of fencing
subtype: epee a fencing sword similar to a foil but with a heavier blade
subtype: foil.fencing_sword a light slender flexible sword tipped by a button
subtype: saber__sabre a fencing sword with a v-shaped blade and a slightly curved handle
subtype: rapier a straight sword with a narrow blade and two edges
subtype: tomahawk__hatchet weapon consisting of a fighting ax; used by North American indians
subtype: Greek_fire a mixture used by Byzantine Greeks that was often shot at adversaries; catches fire when wetted
subtype: whip an instrument with a handle and a flexible lash that is used for whipping
subtype: cat-o'-nine-tails__cat a whip with nine knotted cords; "British sailors feared the cat"
subtype: cowhide a heavy flexible whip made of braided cowhide
subtype: horsewhip a whip for controlling horses
subtype: buggy_whip__buggywhip a horsewhip once used by a driver of a buggy; "since buggies have been replaced by cars the buggy whip has become a symbol for anything that is hopelessly outmoded"
subtype: knout a whip with a lash of leather thongs twisted with wire; used for flogging prisoners
subtype: quirt whip with a leather thong at the end
subtype: riding_crop__hunting_crop__huntingcrop a short whip with a thong at the end and a handle for opening gates
subtype: scourge__flagellum a whip used to inflict punishment (often used for pedantic humor)
subtype: strap.whip whip consisting of a strip of leather used in flogging
subtype: tawse (Scot) a leather strap for punishing children
subtype: interrupter a device for automatically interrupting an electric current
subtype: key metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
subtype: ignition_key a key that operates the ignition switch of an automotive engine
subtype: passkey__passe-partout__passepartout__master_key__master key that secures entrance everywhere
subtype: latchkey passkey for raising or drawing back a latch (especially on an outside door)
subtype: skeleton_key a passkey with much of the bit filed away so that it can open different locks
subtype: keyboard device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
subtype: computer_keyboard a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard
subtype: piano_keyboard__pianokeyboard__fingerboard__clavier a bank of keys on a musical instrument
subtype: typewriter_keyboard a keyboard for manually entering characters to be printed
subtype: QWERTY_keyboard the standard typewriter keyboard; the keys for Q, W, E, R, T, and Y are the first six from the left on the top row of letter keys
subtype: Kinetoscope (trade name) a device invented by Edison that gave an impression of movement as an endless loop of film moved continuously over a light source with a rapid shutter; precursor of the modern motion picture
subtype: doorknocker a device (usually metal and ornamental) attached by a hinge to a door
subtype: lifting_device__liftingdevice a device for lifting heavy loads
subtype: crane.lifting_device lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis
subtype: davit a crane-like device (usually one of a pair) for suspending or lowering equipment (as a lifeboat)
subtype: derrick.crane a simple crane having lifting tackle slung from a boom
subtype: transporter a crane for moving material with dispatch as in loading and unloading ships
subtype: elevator.lifting_device__lift lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building
subtype: dumbwaiter__food_elevator a small elevator used to convey food (or other goods) from one floor of a building to another
subtype: freight_elevator__freightelevator__service_elevator__serviceelevator an elevator designed for carrying freight
subtype: paternoster (British) a type of lift having a chain of open compartments that move continually in a loop so that (agile) passengers can step on or off at each floor
subtype: hoist lifting device for raising heavy or cumbersome objects
subtype: block_and_tackle__blockandtackle pulley blocks with associated rope or cable
subtype: headgear.hoist the hoist at the pithead of a mine
subtype: wheel_and_axle__wheelandaxle hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel
subtype: winch__windlass lifting device consisting of a horizontal cylinder turned by a crank on which a cable or rope winds
subtype: capstan a windlass rotated in a horizontal plane
subtype: lighter__light__igniter__ignitor a device for lighting or igniting fuel or charges or fires; "do you have a light?"
subtype: cigar_lighter__cigarlighter__cigarette_lighter__cigarettelighter__pocket_lighter a lighter for cigars or cigarettes
subtype: fuse__fuze__fusee__fuzee__primer__priming any igniter by which an explosive charge is ignited
subtype: detonating_fuse a fuse containing an explosive
subtype: safety_fuse fuse consisting of a tube or cord filled or saturated with combustible matter
subtype: time-fuse a fuse made to burn for a given time (especially to explode a bomb)
subtype: friction_match__match__lucifer lighter consisting of a thin piece of wood or cardboard tipped with combustible chemical; ignites with friction; "he always carries matches to light his pipe"
subtype: fusee__fuzee a friction match with a large head that will stay alight in the wind
subtype: kitchen_match__kitchenmatch a wooden friction match that will light on any granular surface; useful to light wood or gas stoves
subtype: safety_match__book_matches a paper match that strikes only on a specially prepared surface
subtype: slow_match match or fuse made to burn slowly and evenly
subtype: match.lighter a burning piece of wood or cardboard; "if you drop a match in there the whole place will explode"
subtype: machine any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
subtype: assembly.machine a group of machine parts that fit together to form a self-contained unit
subtype: sub-assembly__subassembly a unit assembled separately but designed to fit with other units in a manufactured product
subtype: weldment an assembly of parts welded together
subtype: bagger a machine for putting objects or substances into bags
subtype: calculating_machine__calculatingmachine__calculator a small machine that is used for mathematical calculations
subtype: abacus a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
subtype: adder a machine that adds
subtype: adding_machine__totalizer__totaliser a calculator that performs simple arithmetic functions
subtype: tabulator__counter a calculator that keeps a record of the number of times something happens
subtype: pulse_counter__pulsecounter an electronic counter that counts the number of electric pulses
subtype: scaler an electronic pulse counter used to count pulses that occur too rapidly to be recorded individually
subtype: hand_calculator__pocket_calculator a calculator small enough to hold in the hand or carry in a pocket
subtype: Napier's_bones__Napier's_rods a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
subtype: quipu calculator consisting of a cord with attached cords; used by ancient Peruvians for calculating and keeping records
subtype: subtracter a machine that subtracts
subtype: calender a machine that smoothes or glazes paper or cloth by pressing it between plates or passing it through rollers
subtype: cash_machine__cash_dispenser__automated_teller_machine__automatic_teller_machine__automated_teller__automatedteller__automatic_teller__automaticteller__ATM an unattended machine (outside some banks) that dispenses money when a personal coded card is used
subtype: electronic_computer__computer__computing_machine__computingmachine__computing_device__computingdevice__data_processor__information_processing_system a machine for performing calculations automatically
subtype: analog_computer__analogue_computer a computer that represents information by variable quantities (e.g., positions or voltages)
subtype: differential_analyzer an analog computer designed to solve differential equations
subtype: slide_rule__sliderule__slipstick analog computer consisting of a handheld instrument used for rapid calculations; have been replaced by pocket calculators
subtype: digital_computer__digitalcomputer a computer that represents information by numerical (binary) digits
subtype: bulletin_board_system__bulletin_board__electronic_bulletin_board__bbs__bb (computer science) a computer that is running software that allows users to leave messages and access information of general interest
subtype: file_server (computer science) a digital computer that provides workstations on a network with controlled access to shared resources
subtype: dedicated_file_server (computer science) a file server that can be used only as a file server
subtype: non-dedicated_file_server (computer science) a file server that can be used simultaneously as a workstation
subtype: mainframe_computer__mainframecomputer__mainframe a large digital computer serving 100-400 users and occupying a special air-conditioned room
subtype: minicomputer a digital computer of medium size
subtype: multiprocessor a computer that uses two or more processing units under integrated control
subtype: personal_computer__PC__microcomputer a small digital computer based on a microprocessor and designed to be used by one person at a time
subtype: desktop_computer__desktopcomputer a personal computer small enough to fit conveniently in an individual workspace
subtype: portable_computer a personal computer that can easily be carried by hand
subtype: briefcase_computer__briefcasecomputer a portable computer housed in a box that resembles a briefcase
subtype: hand-held_computer a portable computer small enough to be carried in your pocket
subtype: laptop_computer__laptop a portable computer small enough to use in your lap
subtype: notebook_computer__notebook a small compact portable computer
subtype: von_Neumann_machine any digital computer incorporating the ideas of stored programs and serial counters that were proposed in 1946 by von Neumann and his colleagues
subtype: workstation a desktop digital computer that is conventionally considered to be more powerful than a microcomputer
subtype: node.electronic_computer__client__guest (computer science) any computer that is hooked up to a computer network
subtype: number_cruncher a computer capable of performing a large number of mathematical operations per second
subtype: pari-mutuel_machine__totalizer__totaliser__totalizator__totalisator computer that registers bets and divides the total amount bet among those who won
subtype: predictor a computer for controlling antiaircraft fire that computes the position of an aircraft at the instant of a shell's arrival
subtype: server.electronic_computer__host (computer science) a computer that provides client stations with access to files and printers as shared resources to a computer network
subtype: Turing_machine a hypothetical computer with an infinitely long memory tape
subtype: web_site__website__internetsite__site a computer connected to the internet that maintains a series of web pages on the World Wide Web; "the Israeli web site was damaged by hostile hackers"
subtype: concrete_mixer__cement_mixer a machine with a large revolving drum in which cement is mixed with other materials to make concrete
subtype: corker a machine that is used to put corks in bottles
subtype: cotton_gin__gin a machine that separates the seeds from raw cotton fibers
subtype: decoder a machine that converts a coded text into ordinary language
subtype: farm_machine a machine used in farming
subtype: cultivator__tiller a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)
subtype: harrow a cultivator that pulverizes or smoothes the soil
subtype: disk_harrow__disc_harrow a harrow with a series of disks set on edge at an angle
subtype: harvester__reaper farm machine that gathers a food crop from the fields
subtype: reaper_binder__binder a machine that cuts grain and binds it in sheaves
subtype: combine harvester that heads and threshes and cleans grain while moving across the field
subtype: header.harvester a machine that cuts the heads off grain and moves them into a wagon
subtype: haymaker__hay_conditioner__hayconditioner a farm machine that treats hay to cause more rapid and even drying
subtype: thresher__thrasher__threshing_machine__threshingmachine a farm machine for separating seeds or grain from the husks and straw
subtype: franking_machine a machine that automatically stamps letters or packages passing through it and computes the total charge
subtype: hop-picker__hoppicker__hopper a machine used for picking hops
subtype: machinery machines or machine systems collectively
subtype: enginery machinery consisting of engines collectively
subtype: machine_tool__machinetool a powered machine for cutting or shaping or finishing metals or other materials
subtype: grinder a machine tool that polishes metal
subtype: shaping_machine__shaper a machine tool for shaping metal or wood
subtype: lathe machine tool for shaping metal or wood; the workpiece turns about a horizontal axis against a fixed tool
subtype: bench_lathe__benchlathe lathe mounted on a workbench
subtype: milling_machine__millingmachine__miller machine tool in which metal that is secured to a carriage is fed against rotating cutters that shape it
subtype: milking_machine__milkingmachine machine consisting of a suction apparatus for milking cows mechanically
subtype: mill__grinder machine that processes materials by grinding or crushing
subtype: cider_mill__cidermill mill that extracts juice from apples to make apple cider
subtype: coffee_mill__coffee_grinder a mill that grinds roasted coffee beans
subtype: flour_mill__flourmill a mill for grinding grain into flour
subtype: gristmill a mill for grinding grain (especially the customer's own grain)
subtype: meat_grinder.mill__meatgrinder a mill for grinding meat
subtype: pepper_mill__pepper_grinder a mill for grinding pepper
subtype: quern a primitive stone mill for grinding corn by hand
subtype: spicemill a mill for grinding spices
subtype: treadwheel__treadmill a mill that is powered by men or animals walking on a circular belt or climbing steps
subtype: water_mill__watermill a mill powered by a water wheel
subtype: windmill a mill that is powered by the wind
subtype: motor machine that converts other forms of energy into mechanical energy and so imparts motion
subtype: electric_motor a motor that converts electricity to mechanical work
subtype: starter_motor__startermotor__starter__startingmotor an electric motor for starting an engine
subtype: kick_starter__kick_start a starter (as on a motorcycle) that is activated with the foot and the weight of the body
subtype: self-starter an electric starting motor that automatically starts an internal-combustion engine
subtype: synchronous_motor__synchronousmotor electric motor in which the speed of rotation is proportional to the frequency of the A.C. power
subtype: wiper_motor__wipermotor electric motor that moves the windshield wiper
subtype: engine motor that converts thermal energy to mechanical work
subtype: aircraft_engine the engine that powers and aircraft
subtype: automobile_engine the engine that propels an automobile
subtype: auxiliary_engine__auxiliaryengine__donkey_engine a small engine (as one used on board ships to operate a windlass)
subtype: generator engine that converts mechanical energy into electrical energy by electromagnetic induction
subtype: alternator an old term for an electric generator that produces alternating current (especially in automobiles)
subtype: dynamo generator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature
subtype: magneto__magnetoelectric_machine__magnetoelectricmachine a small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine
subtype: turbogenerator generator consisting of a steam turbine coupled to an electric generator for the production of electric power
subtype: aerogenerator__windmill__wind_generator generator that extracts usable energy from winds
subtype: heat_engine any engine that makes use of heat to do work
subtype: external-combustion_engine a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy
subtype: steam_engine__steamengine external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder
subtype: internal-combustion_engine__ICE a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
subtype: diesel_engine__diesel__diesel_motor an internal-combustion engine that burns heavy oil
subtype: four-stroke_engine__four-stroke_internal-combustion_engine an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
subtype: gas_engine__gasengine an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor
subtype: gasoline_engine an internal-combustion engine that burns gasoline; most automobiles are driven by gasoline engines
subtype: put-put__putput (informal) a small gasoline engine (as on motor boat)
subtype: outboard_motor__outboard internal-combustion engine that mounts at stern of small boat
subtype: radial_engine__rotary_engine an internal-combustion engine having cylinders arranged radially around a central crankcase
subtype: reciprocating_engine__reciprocatingengine an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
subtype: rotary_engine an internal-combustion engine in which power is transmitted directly to rotating components
subtype: turbine rotary engine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a bladed rotor to rotate
subtype: gas_turbine__gasturbine turbine that converts the chemical energy of a liquid fuel into mechanical energy by internal combustion; gaseous products of the fuel (which is burned in compressed air) are expanded through a turbine
subtype: hydroelectric_turbine__hydroelectricturbine turbine consisting of a large and efficient version of a water wheel used to drive an electric generator
subtype: Francis_turbine a type of hydroelectric turbine
subtype: impulse_turbine__impulseturbine a turbine that is driven by jets direct against the blades
subtype: reaction_turbine a turbine with blades arranged to develop torque from gradual decrease of steam pressure from inlet to exhaust
subtype: steam_turbine__steamturbine turbine in which steam strikes blades and makes them turn
subtype: Wankel_engine__Wankel_rotary_engine__epitrochoidal_engine__epitrochoidalengine a rotary engine that is a four-stroke internal-combustion engine without reciprocating parts
subtype: valve-in-head_engine internal-combustion engine having both inlet and exhaust valves located in the cylinder head
subtype: reaction-propulsion_engine__reaction_engine a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
subtype: ion_engine__ionengine a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field
subtype: jet_engine__jetengine a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion
subtype: ramjet_engine__ramjet__atherodyde__athodyd__flying_drainpipe a simple type of jet engine; must be launched at high speed
subtype: rocket_engine__rocket a jet engine containing its own propellant and driven by reaction propulsion
subtype: takeoff_booster__takeoffbooster__booster__booster_rocket__boosterrocket__booster_unit__boosterunit__multistage_rocket__takeoff_rocket__takeoffrocket the first stage of a multistage rocket
subtype: nuclear_rocket__nuclearrocket a rocket engine in which a nuclear reactor is used to heat a propellant
subtype: retrorocket a small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its course
subtype: space_rocket__spacerocket a rocket powerful enough to travel into outer space
subtype: thruster a small rocket engine that provides the thrust needed to maneuver a spacecraft
subtype: turbojet_engine__turbojet__turbofan__turbofan_engine jet engine in which a turbine drives air to the burner
subtype: pavior__paviour__paving_machine a machine for laying pavement
subtype: perpetual_motion_machine a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
subtype: pile_driver a machine that drives piling into the ground
subtype: power_shovel__powershovel__excavator__digger__shovel a machine for excavating
subtype: backhoe an excavator whose shovel bucket is attached to a hinged boom and is drawn backward to move earth
subtype: dredge a power shovel to remove material from a channel or riverbed
subtype: steam_shovel__steamshovel a power shovel that is driven by steam
subtype: power_tool__powertool a tool driven by a motor
subtype: polisher__buffer a power tool used to buff surfaces
subtype: burr.power_tool rotary file for smoothing rough edges left on a workpiece
subtype: drum_sander__electric_sander__sander__smoother a power tool used for sanding wood; a loop of sandpaper is moved at high speed by an electric motor
subtype: power_hammer__powerhammer__hammer a power tool for drilling rocks
subtype: air_hammer__airhammer__jackhammer__pneumatic_hammer__pneumatichammer a hammer driven by compressed air
subtype: electric_hammer a hammer driven by electric motor
subtype: triphammer a massive power hammer; raised by a cam until released to fall under gravity
subtype: planer__plane__planing_machine__planingmachine a power tool for smoothing or shaping wood
subtype: power_drill__powerdrill a power tool for making holes in hard materials
subtype: electric_drill__drill a rotating power drill powered by an electric motor
subtype: pneumatic_drill__pneumaticdrill a power drill powered by compressed air
subtype: power_saw__powersaw__saw__sawingmachine a power tool for cutting wood
subtype: bandsaw a toothed metal band driven by two wheels
subtype: chain_saw__chainsaw__chainsaw portable power saw; teeth linked to form an endless chain
subtype: circular_saw__buzz_saw a power saw that has a steel disk with cutting teeth on the periphery; rotates on a spindle
subtype: portable_saw a portable circular saw (with a hand grip)
subtype: gangsaw a power saw that has several parallel blades making simultaneous cuts
subtype: jigsaw__scroll_saw__fretsaw fine-toothed power saw with a narrow blade; used to cut curved outlines
subtype: sawmill a large sawing machine
subtype: router a power tool with a shaped cutter; used in carpentry for cutting grooves
subtype: stamping_machine__stamper a power tool that stamps; "a metal stamper"
subtype: mechanical_press__press__pres any machine that exerts pressure to form or shape or cut materials or extract liquids or compress solids
subtype: cheese_press a press for shaping cheese curd
subtype: ciderpress a press that is used to extract the juice from apples
subtype: garlic_press a press for extracting juice from garlic
subtype: hydraulic_press__hydraulicpres press in which a force applied by a piston to a small area is transmitted through water to another piston having a large area
subtype: punch_press__punchpres a power driven press used to shape metal parts
subtype: bench_press.punch_press__benchpres a small punch press mounted on a workbench
subtype: winepress__winepres a press that is used to extract the juice from grapes
subtype: printing_press__press__pres a machine used for printing
subtype: rotary_press a printing press for printing from a revolving cylinder
subtype: standing_press a large printing press that exerts pressure vertically
subtype: printing_machine__printer a machine that prints
subtype: addressing_machine__Addressograph a printer that automatically prints addresses on letters for mailing
subtype: character_printer__characterprinter__character-at-a-time_printer__serial_printer a printer that prints a single character at a time
subtype: daisywheel_printer a printer that uses a daisy print wheel
subtype: teletypewriter__teleprinter__teletype_machine__telex__telex_machine a character printer connected to a telegraph that operates like a typewriter
subtype: stock_ticker__stockticker character printer that automatically prints stock quotations on tickertape
subtype: typewriter hand-operated character printer for printing written messages one character at a time
subtype: electric_typewriter a typewriter powered by an electric motor
subtype: portable a small light typewriter; usually with a case in which it can be carried
subtype: electrostatic_printer__electrostaticprinter a printer that uses an electric charge to deposit toner on paper
subtype: laser_printer__laserprinter electrostatic printer that focuses a laser beam to form images that are transferred to paper electrostatically
subtype: impact_printer a printer that prints by mechanical impacts
subtype: bar_printer__barprinter an impact printer that uses a bar to carry the type slugs
subtype: chain_printer__chainprinter an impact printer that carries the type slugs by links of a revolving chain
subtype: wire_matrix_printer__wire_printer__stylus_printer an impact printer in which each character is represented by a pattern of dots made by wires or styli
subtype: line_printer__line-at-a-time_printer printer that serves as an output device on a computer; prints a whole line of characters at a time
subtype: drum_printer a line printer in which the type is mounted on a rotating drum that contains a full character set for each printing position
subtype: page_printer__page-at-a-time_printer a printer that prints one page at a time
subtype: xerographic_printer__xerographicprinter a page printer that uses the xerographic process
subtype: thermal_printer a printer that produces characters by applying heat to special paper that is sensitive to heat
subtype: typesetting_machine__typesettingmachine a printer that sets textual material in type
subtype: Linotype_machine__Linotype (trade mark) a typesetting machine operated from a keyboard that casts an entire line as a single slug of metal
subtype: monotype a typesetting machine operated from a keyboard that sets separate characters
subtype: record_player__phonograph machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically
subtype: acoustic_gramophone__gramophone an antique record player; the sound of the vibrating needle is amplified acoustically
subtype: Victrola (trademark) a brand of gramophone
subtype: jukebox__nickelodeon a cabinet containing an automatic record player; records are played by inserting a coin
subtype: riveting_machine__riveter__rivetter a machine for driving rivets
subtype: self-feeder__feeder a machine that automatically provides a supply of some material (especially one that discharges feed into a trough for livestock)
subtype: simulator a machine that simulates an environment for the purpose of training or research
subtype: flight_simulator__trainer simulator consisting of a machine on the ground that simulates the conditions of flying a plane
subtype: Link_trainer (trademark) an early form of flight simulator
subtype: slicer.machine a machine for cutting; usually with a revolving blade
subtype: slot_machine__coin_machine a machine that is operated by the insertion of a coin in a slot
subtype: one-armed_bandit__onearmedbandit__slot a slot machine that is used for gambling; "they spend hours and hours just playing the slots"
subtype: vending_machine__vendingmachine a slot machine for selling goods
subtype: automat.vending_machine a vending machine from which you can get food
subtype: snow_thrower__snow_blower a machine that removes snow by scooping it up and throwing it forcefully through a chute
subtype: sorter a machine for sorting things (such as punched cards or letters) into classes
subtype: mailsorter a sorter for sorting mail according to the address
subtype: stamp.machine__pestle machine consisting of a heavy bar that moves vertically for pounding or crushing ores
subtype: stapler__stapling_machine a machine that inserts staples into sheets of paper in order to fasten them together
subtype: textile_machine__textilemachine a machine for making textiles
subtype: knitting_machine a textile machine that makes knitted fabrics
subtype: loom a textile machine for weaving yarn into a textile
subtype: carpet_loom a loom for weaving carpeting
subtype: figure_loom__figured-fabric_loom a loom for weaving figured fabrics
subtype: handloom a loom powered by hand
subtype: high-warp_loom a handloom in which the warp is carried vertically; for weaving tapestry
subtype: low-warp-loom a handloom in which the warp is carried horizontally; for weaving tapestry
subtype: Jacquard_loom a loom with an attachment for forming openings for the passage of the shuttle between the warp threads
subtype: power_loom__powerloom a loom operated mechanically
subtype: sewing_machine a textile machine used as a home appliance for sewing
subtype: serger a sewing machine that overcasts the raw edges of a fabric with a V-shaped stitch
subtype: spinning_machine a textile machine for spinning yarn and thread
subtype: spinning_frame spinning machine that draws, twists, and winds yarn
subtype: spinning_jenny an early spinning machine with multiple spindles
subtype: spinning_wheel a small domestic spinning machine with a single spindle that is driven by hand or foot
subtype: throstle a spinning machine formerly used to twist and wind fibers of cotton or wool continuously
subtype: willow a textile machine having a system of revolving spikes for opening and cleaning raw textile fibers
subtype: time_machine a science fiction machine that is supposed to transport people or objects into the past or the future
subtype: trimmer a machine that trims timber
subtype: workhorse.machine machine that performs dependably under heavy use; "the IBM main frame computers have been the workhorse of the business world"
subtype: magnet a device that attracts iron and produces a magnetic field
subtype: bar_magnet__barmagnet a magnet in the form of a bar with magnetic poles at each end
subtype: electromagnet a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet
subtype: magnetic_head an electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface a later retrieved
subtype: field_magnet__fieldmagnet a magnet that provides a magnetic field in a dynamo or electric motor
subtype: magnetic_needle a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole
subtype: paramagnet magnet made of a substance whose magnetization is proportional to the strength of the magnetic field applied to it
subtype: permanent_magnet__permanentmagnet__static_magnet a magnet that retains its magnetism after being removed from a magnetic field
subtype: stud_finder a small permanent magnet in a metal container; when the magnet clicks against the container it indicates that the magnet is directly over an iron nail that holds the wallboard to a stud
subtype: lodestone__loadstone magnetite that possess polarity and has the power to attract as well as to be attracted magnetically
subtype: solenoid a coil of wire around an iron core; becomes a magnet when current passes through the coil
subtype: mechanism device consisting of a piece of machinery; has moving parts that perform some function
subtype: action_mechanism__action the operating part that transmits power to a mechanism; "the piano had a very stiff action"
subtype: gunlock__firing_mechanism the action that ignites the charge in a firearm
subtype: flintlock a gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge
subtype: wheel_lock__wheellock an obsolete gunlock using flint and a revolving wheel
subtype: movement.action_mechanism the driving and regulating parts of a mechanism (as of a watch or clock); "it was an expensive watch with a diamond movement"
subtype: piano_action__pianoaction action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed
subtype: pump_action__slide_action__slideaction action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round
subtype: actuator a mechanism that puts something into automatic action
subtype: rotary_actuator__positioner (computer science) the actuator that moves a read/write head to the proper data track
subtype: robot__automaton__golem a mechanism that can move automatically
subtype: android__humanoid__mechanical_man an automaton that resembles a human being
subtype: axis_of_rotation__axis the center around which something rotates
subtype: pivot.axis_of_rotation__pin axis consisting of a short shaft that supports something that turns
subtype: fulcrum the pivot about which a lever turns
subtype: pintle a pin or bolt forming the pivot of a hinge
subtype: rotor_head__rotorhead__rotor_shaft__rotorshaft the axis around which the major rotor of a helicopter turns
subtype: carriage a machine part that carries something else
subtype: typewriter_carriage a carriage for carrying a sheet of paper
subtype: cartridge_ejector__cartridgeejector__ejector a mechanism in a firearm that ejects the empty shell case after firing
subtype: cartridge_extractor__cartridgeextractor__cartridge_remover__cartridgeremover__extractor a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector
subtype: clockwork any mechanism of geared wheels that is driven by a coiled spring; resembles the works of a mechanical clock
subtype: controller__control a mechanism that controls the operation of a machine; "the speed control on his turntable was not working properly"; "I turned the controls over to her"
subtype: cruise_control control mechanism for keeping an automobile at a set speed
subtype: dial.controller the control on a radio or television set that is used for tuning
subtype: disk_controller (computer science) a circuit or chip that translates commands into a form that can control a hard disk drive
subtype: governor.controller__regulator a control that maintains a steady speed in a machine (as by controlling the supply of fuel)
subtype: timer.governor a regulator that activates or deactivates a mechanism at set times
subtype: handwheel control consisting of a wheel whose rim serves as the handle by which a part is operated
subtype: steering_wheel__wheel a handwheel that is used for steering
subtype: joystick a manual control consisting of a vertical handle that can move freely in two directions; used as an input device to computers or to devices controlled by computers
subtype: regulator any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.
subtype: aperture a device that controls amount of light admitted
subtype: ballcock__ball_cock floating ball that controls level in a water tank
subtype: draft.regulator a regulator for controlling the flow of air in a fireplace
subtype: faucet a regulator for controlling the flow of a liquid from a reservoir
subtype: mixing_faucet single faucet for separate hot and cold water pipes
subtype: stopcock__cock__turncock faucet consisting of a rotating device for regulating flow of a liquid
subtype: water_faucet__waterfaucet__water_tap__watertap__tap__spigot__hydrant a faucet for drawing water from a pipe or cask
subtype: flywheel regulator consisting of a heavy wheel that stores kinetic energy and smoothes the operation of a reciprocating engine
subtype: peg regulator that can be turned to regulate the pitch of the strings of a stringed instrument
subtype: petcock regulator consisting of a small cock or faucet or valve for letting out air or releasing compression or draining
subtype: register.regulator a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device
subtype: safety_valve__relief_valve__escape_valve__escape_cock__escape a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
subtype: sluicegate__sluice_valve__floodgate__penstock__head_gate__water_gate__watergate regulator consisting of a valve or gate that controls the rate of water flow through a sluice
subtype: thermostat__thermoregulator a regulator for automatically regulating temperature by starting or stopping the supply of heat
subtype: cryostat a thermostat that operates at very low temperatures
subtype: pyrostat a thermostat that operates at very high temperatures
subtype: switch__switch_device control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
subtype: commutator switch for reversing the direction of an electric current
subtype: ignition_switch switch that operates a solenoid that closes a circuit to operate the starter
subtype: push_button__push__button an electrical switch operated by pressing a button; "the elevator was operated by push buttons"; "the push beside the bed operated a buzzer at the desk"
subtype: bell_push a button that is pushed to ring a bell
subtype: doorbell__bell__buzzer a push button at an outer door that gives a ringing or buzzing signal when pushed
subtype: night_bell__nightbell a doorbell to be used at night
subtype: horn_button a button that you press to activate the horn of an automobile
subtype: mouse_button__mousebutton a push button on the mouse
subtype: reset_button__resetbutton a push button that you press to activate the reset mechanism
subtype: selector_switch__selector a switch that is used to select among alternatives
subtype: telephone_dial__telephonedial__dial a disc on a telephone that is rotated a fixed distance for each number called
subtype: time-switch a switch set to operate at a desired time
subtype: toggle_switch__toggle__on-off_switch a hinged switch that can assume either of two positions
subtype: DIP_switch__dual_inline_package_switch (computer science) one of a set of small on-off switches mounted in computer hardware; used in place of jumpers to configure the machine for a user
subtype: switching_object__switchingobject
subtype: toll_switch
subtype: office_switch
subtype: tandem_switch
subtype: router
subtype: PBX public branch exchange
subtype: international_gateway international switch
subtype: valve control consisting of a mechanical device for controlling the flow of a fluid
subtype: throttle__accelerator__throttle_valve a valve that regulates the supply of fuel to the engine
subtype: ball_valve any valve that checks flow by the seating of a ball
subtype: butterfly_valve__butterflyvalve a valve in a carburetor that consists of a disc that turns and acts as a throttle
subtype: choke a valve that controls the flow of air into the carburetor of a gasoline engine
subtype: automatic_choke a choke that automatically controls the flow of air to the carburetor
subtype: clack_valve__clackvalve__clack__clapper_valve__clappervalve a simple valve with a hinge on one side; allows fluid to flow in only one direction
subtype: exhaust_valve__exhaustvalve a valve through which burned gases from a cylinder escape into the exhaust manifold
subtype: intake_valve a valve that controls the flow of fluid through an intake
subtype: poppet_valve__poppet a mushroom-shaped valve that rises perpendicular from its seat; commonly used in internal-combustion engines
subtype: safety_valve__relief_valve__escape_valve__escape_cock__escape a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
subtype: slide_valve__slidevalve valve that opens and closes a passageway by sliding over a port
subtype: cooling_system__coolingsystem__cooling a mechanism for keeping something cool; "the cooling was overhead fans"
subtype: air-conditioner__airconditioner__air-conditioning__airconditioning a system that keeps air cool and dry
subtype: coolant_system__coolantsystem a cooling system that uses a fluid to transfer heat from one place to another
subtype: cooling_tower__coolingtower a cooling system used in industry to cool hot water (by partial evaporation) before reusing it as a coolant
subtype: evaporative_cooler__evaporativecooler a cooing system that cools by evaporation
subtype: refrigeration_system__refrigerationsystem a cooling system for chilling or freezing (usually for preservative purposes)
subtype: delayed_action__delayedaction a mechanism that automatically delays the release of a camera shutter for a fixed period of time so that the photographer can appear in the picture
subtype: drive.mechanism a mechanism by which force or power is transmitted in a machine; "a variable speed drive permitted operation through a range of speeds"
subtype: drive_line_system__drive_line__driveline mechanism that transmits power from the engine to the driving wheels of a motor vehicle
subtype: film_advance a mechanism for advancing film in a camera or projector
subtype: gear_mechanism__gear a mechanism for transmitting motion by gears for some specific purpose (as the steering gear of a vehicle)
subtype: first_gear__firstgear__first__low_gear__lowgear__low the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
subtype: gearset a set of gears
subtype: high_gear__high a forward gear with a gear ratio giving high vehicle velocity for a given engine speed
subtype: overdrive a high gear used at high speeds to maintain the driving speed with less output power
subtype: park.gear_mechanism a gear position that acts as a parking brake; "the put the car in park and got out"
subtype: reverse the gears by which the motion of a machine can be reversed
subtype: second_gear__second the gear that has the second lowest forward gear ratio in the gear box of a motor vehicle; "he had to shift down into second to make the hill"
subtype: steering_gear a gear that couples the the steering wheel to the steering linkage of a motor vehicle
subtype: third_gear__thirdgear__third the third from the lowest forward ratio gear in the gear box of a motor vehicle; "you shouldn't try to start in third gear"
subtype: transmission_system__transmission the gears that transmit power from an automobile engine via the driveshaft to the live axle
subtype: automatic_transmission__automatictransmission__automatic_drive__automaticdrive a transmission that automatically changes the gears according to the speed of the car
subtype: four-wheel_drive__4WD a transmission that provides power directly to all four wheels of a motor vehicle
subtype: standard_transmission__stick_shift__stickshift a transmission that is operated manually with a gear lever and a clutch pedal
subtype: homing_device the mechanism in a guided missile that guides it toward its objective
subtype: hydraulic_system__hydraulicsystem a mechanism operated by the resistance offered or the pressure transmitted when a liquid is forced through a small opening or tube
subtype: ignition_system__ignition the mechanism that ignites the fuel in an internal-combustion engine
subtype: lock.mechanism a mechanism that detonates the charge of a gun
subtype: mechanical_device mechanism consisting of a device that works on mechanical principles
subtype: bellows__bellow__blower a mechanical device that blows air onto a fire to make it burn more fiercely
subtype: broadcaster.mechanical_device__spreader a mechanical device for scattering something (seed or fertilizer or sand etc.) in all directions
subtype: bumper a mechanical device consisting of bars at either end of vehicle absorb shock and prevent damage
subtype: bumper_guard vertical bars attached to a bumper to prevent locking bumpers with another vehicle
subtype: carburetor__carburettor mixes air with gasoline vapor prior to explosion
subtype: compressor a mechanical device that compresses gasses
subtype: air_compressor__aircompressor a compressor that takes in air at atmospheric pressure and delivers it at a higher pressure
subtype: supercharger compressor that forces increased oxygen into the cylinders of an internal-combustion engine
subtype: copyholder mechanical device used in printing; holds the copy for the compositor
subtype: coupler__coupling a mechanical device that serves to connect the ends of adjacent objects
subtype: clevis a coupling to attach a drawbar to a plow or wagon or trailer etc.
subtype: clutch.coupler a coupling that connects or disconnects driving and driven parts of a driving mechanism
subtype: friction_clutch a clutch in which one part turns the other by the friction between them
subtype: cone_clutch__cone_friction_clutch a friction clutch in which the frictional surfaces are cone-shaped
subtype: disk_clutch a friction clutch in which the frictional surfaces are disks
subtype: slip_clutch__slip_friction_clutch a friction clutch that will slip with the torque is too great
subtype: fluid_drive__fluiddrive an automotive power coupling
subtype: swivel a coupling (as in a chain) that has one end that turns on a headed pin
subtype: universal_joint__universaljoint__universal coupling that connects two rotating shafts allowing freedom of movement in all directions; "in motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps"
subtype: hair_curler__curler__roller__crimper a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it; "a woman with her head full of curlers is not a pretty sight"
subtype: diaphragm.mechanical_device__stop a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"
subtype: iris_diaphragm__iris diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
subtype: dicer a mechanical device used for dicing food
subtype: dildo a mechanical device that substitutes for an erect penis to provide vaginal stimulation
subtype: vibrator.dildo dildo that has a vibrating tip
subtype: electromechanical_device__electromechanicaldevice a mechanical device that is operated by electricity
subtype: escapement mechanical device that regulates movement
subtype: gearshift__gearstick__shifter a mechanical device for engaging and disengaging gears
subtype: hook.mechanical_device__claw a mechanical device that is curved or bent to suspend or hold or pull something
subtype: ground_tackle__anchor a mechanical device that prevents a vessel from moving
subtype: grapnel_anchor__grapnelanchor__grapnel a light anchor for small boats
subtype: mooring_anchor__mooringanchor an anchor used to hold a mooring buoy or a channel marker in place
subtype: mushroom_anchor an anchor used for semipermanent moorings; has a bowl-shaped head that will dig in however it falls
subtype: sheet_anchor__sheetanchor__waist_anchor__waistanchor spare anchor for use in emergency
subtype: pothook an S-shaped hook to suspend a pot over a fire
subtype: trammel.pothook an adjustable pothook set in a fireplace
subtype: tenterhook one of a series of hooks used to hold cloth on a tenter
subtype: simple_machine__machine a device for overcoming resistance at one point by applying force at some other point
subtype: inclined_plane a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal
subtype: ramp__incline an inclined surface or roadway that moves traffic from one level to another
subtype: ski_jump__skijump a steep downward ramp from which skiers jump
subtype: screw.inclined_plane a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole
subtype: wedge something usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
subtype: ax_head__axe_head__axehead the cutting head of an ax
subtype: colter__coulter a sharp steel wedge that precedes the plow and cuts vertically through the soil
subtype: moldboard__mouldboard wedge formed by the curved part of a steel plow blade that turns the furrow
subtype: plowshare__ploughshare__share a sharp steel wedge that cuts loose the top layer of soil
subtype: coign__quoin__coigne expandable metal or wooden wedge used by printers to lock up a form within a chase
subtype: shim a thin wedge of material (wood or metal or stone) for driving into crevices
subtype: lever.simple_machine a simple machine that gives a mechanical advantage when given a fulcrum
subtype: pulley-block__pulley__block a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
subtype: bollock__bullock_block__bullockblock a pulley-block at the head of a topmast
subtype: fairlead a pulley-block used to guide a rope forming part of a ship's rigging to avoid chafing
subtype: snatch_block a pulley-block that can be opened to receive the bight of a rope
subtype: idle_pulley__idler_pulley__idlerpulley__idle_wheel a pulley on a shaft that presses against a guide belt to guide or tighten it
subtype: wheel a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
subtype: balance_wheel__balancewheel a wheel oscillating against the hairspring of a timepiece to regulate its beat
subtype: bicycle_wheel__bicyclewheel the wheel of a bicycle
subtype: buffing_wheel__buffingwheel a wheel that is covered with soft material
subtype: cartwheel.wheel a wheel that has wooden spokes and a metal rim
subtype: car_wheel__carwheel a wheel that has a tire and rim and hubcap; used to propel the car
subtype: fifth_wheel.car_wheel__spare an extra car wheel and tire
subtype: daisy_print_wheel__daisyprintwheel__daisy_wheel__daisywheel a wheel around which is a set of print characters that make a typing impression on paper
subtype: driving_wheel__drivingwheel a wheel that drives a motor vehicle (transforms torque into a tractive force)
subtype: gear_wheel__gear__cogwheel a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
subtype: bevel_gear__bevelgear__pinionandcrownwheel__pinion_and_ring_gear gears that mesh at an angle
subtype: differential_gear__differential a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves
subtype: escape_wheel gear that engages a rocking lever
subtype: pinion a gear with a small number of teeth designed to mesh with a larger wheel or rack
subtype: lantern_pinion__lanternpinion__lantern_wheel__lanternwheel a small pinion having cylindrical bars instead of teeth, used chiefly in inexpensive clocks
subtype: planetary_gear__planetarygear__epicyclic_gear__epicyclicgear__planet_wheel__planet_gear an outer gear that revolves about a central sun gear of an epicyclic train
subtype: rack_and_pinion a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa)
subtype: spur_gear__spur_wheel gear wheels that mesh in the same plane
subtype: sun_gear__sungear the central gear in a epicyclic train
subtype: worm_gear gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion
subtype: worm_wheel gear with the thread of a worm
subtype: grinding_wheel__emery_wheel__emerywheel a wheel composed of abrasive material; used for grinding
subtype: handwheel.wheel a wheel worked by hand
subtype: nosewheel a wheel located under the nose of an airplane that is part of the plan's landing gear
subtype: paddlewheel a large wheel fitted with paddles and driven by an engine in order to propel a boat
subtype: potter's_wheel a horizontal rotating wheel holding the clay being shaped by a potter
subtype: ratchet_wheel__ratchetwheel toothed wheel held in place by a pawl or detent and turned by a lever
subtype: roller.wheel a small wheel without spokes (as on a roller skate)
subtype: caster.roller__castor a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable
subtype: toothed_wheel__toothedwheel__roulette a wheel with teeth for making a row of perforations
subtype: rowel a small spiked wheel at the end of a spur
subtype: sprocket_wheel__sprocket thin wheel with teeth that engage with a chain
subtype: trundle small wheel or roller
subtype: wagon_wheel__wagonwheel a wheel of a wagon
subtype: waterwheel__water_wheel__waterwheel a wheel that rotates by direct action of water; a simple turbine
subtype: millwheel water wheel that is used to drive machinery in a mill
subtype: noria a water wheel with buckets attached to the rim; used to raise water for transfer to an irrigation channel
subtype: water_wheel__waterwheel__waterwheel a wheel with buckets attached to its rim; raises water from a stream or pond
subtype: pantograph mechanical device used to copy a figure or plan on a different scale
subtype: piston__plunger mechanical device that has a plunging or thrusting motion
subtype: propeller__propellor a mechanical device that rotates to push against air or water
subtype: airplane_propeller__airscrew__prop a propeller that rotates to push against air
subtype: screw_propeller__screw a propeller with several angled blades that rotates to push against water or air
subtype: variable-pitch_propeller propeller for which the angle of the blades is adjustable
subtype: pump a mechanical device that moves fluid or gas by pressure or suction
subtype: air_pump__airpump__vacuum_pump a pump that moves air in or out of something
subtype: condensation_pump__diffusion_pump__diffusionpump vacuum pump used to obtain a high vacuum
subtype: inflater__inflator an air pump operated by hand to inflate something (as a tire)
subtype: ion_pump__ionpump a vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surface
subtype: aspirator a pump that draws air or another gas through a liquid
subtype: auxiliary_pump__auxiliarypump__donkey_pump a supplementary pump available if needed
subtype: bicycle_pump__bicyclepump a small pump that fills bicycle tires with air
subtype: bilge_pump__bilgepump a pump to remove bilgewater
subtype: centrifugal_pump__centrifugalpump a pump that use centrifugal force to discharge fluid into a pipe
subtype: force_pump__forcepump pump used to force a liquid up and expel it under pressure
subtype: gas_pump__gaspump__gasoline_pump__island_dispenser a pump in a service station that draws gasoline from underground storage tanks
subtype: grease-gun__gun a hand-operated pump that resembles a gun; forces grease into parts of a machine
subtype: hand_pump a pump worked by hand
subtype: heart-lung_machine a pump to maintain circulation during heart surgery; diverts blood from the heart and oxygenates it and then pumps it through the body
subtype: hydraulic_pump__hydraulicpump__hydraulic_ram__hydraulicram a water pump that uses the kinetic energy of flowing water to force a small fraction of that water to a reservoir at a higher level
subtype: lift_pump pump used to lift rather than force a liquid up
subtype: oil_pump__oilpump a pump that keeps a supply of oil on moving parts
subtype: stirrup_pump__stirruppump a hand-operated reciprocating pump; used in fighting fires
subtype: suction_pump__suctionpump a pump for raising fluids by suction
subtype: stomach_pump__stomachpump a suction pump used to remove the contents of the stomach
subtype: sump_pump a suction pump for removing liquid from a sump
subtype: water_pump__waterpump the pump in the cooling system of an automobile that cause the water to circulate
subtype: ratchet__rachet__ratch mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
subtype: record_changer__auto-changer__changer an automatic mechanical device on a record player that causes new records to be played without manual intervention
subtype: reed mechanical device consisting of a thin strip of stiff material that is fitted into the mouthpiece of woodwind instruments and that vibrates to produce a tone when air streams over it
subtype: double_reed a pair of joined reeds that vibrate together to produce the sound in some woodwinds
subtype: ride a mechanical device that you ride for amusement or excitement
subtype: carousel__carrousel__merrygoround__roundabout__whirligig large mechanical apparatus with seats for children to ride on
subtype: Ferris_wheel rotating mechanism consisting of a large upright wheel with suspended seats that remain upright as the wheel turns; provides a ride at an amusement park
subtype: roller_coaster__big_dipper__bigdipper__chutethechute elevated railway in an amusement park (usually with sharp curves and steep inclines)
subtype: seeder.mechanical_device a mechanical device that sows grass seed or grain evenly over the ground
subtype: shutter.mechanical_device a mechanical device on a camera that opens and closes to control the time of a photographic exposure
subtype: splicer a mechanical device for joining two pieces of paper or film or magnetic tape
subtype: splint an orthopedic mechanical device used to immobilize and protect a part of the body (as a broken leg)
subtype: sprinkler mechanical device that attaches to a garden hose for watering lawn or garden
subtype: stator_coil__stator mechanical device consisting of the stationary part of a motor or generator in or around which the rotor revolves
subtype: stoker a mechanical device for stoking a furnace
subtype: stretcher.mechanical_device a mechanical device used to make something larger (as shoes or gloves) by stretching it
subtype: striker the part of a mechanical device that strikes something
subtype: clapper__tongue metal striker that hangs inside a bell and makes a sound by hitting the side
subtype: firing_pin striker that ignites the charge by striking the primer
subtype: piano_hammer__pianohammer__hammer a striker that is covered in felt and that causes the piano strings to vibrate
subtype: gunlock_hammer__gunlockhammer__hammer the part of a gunlock that strikes the percussion cap when the trigger is pulled
subtype: head.striker the striking part of a tool; "the head of the hammer"
subtype: golfclub_head__club_head the head of the golf club that strikes the ball
subtype: hammerhead the striking part of a hammer
subtype: supply_chamber a mechanical device for holding something and supplying it as needed
subtype: cartridge_holder__cartridgeholder__cartridge_clip__cartridgeclip__clip__magazine a metal frame or container holding cartridges; can be inserted into an automatic gun
subtype: pincurl_clip__pincurlclip a variety of clip for holding pin curls
subtype: magazine.supply_chamber__cartridge a light-tight supply chamber holding the film and supplying it for exposure as required
subtype: swing.plaything mechanical device used as a plaything to support someone swinging back and forth
subtype: trapeze a swing used by circus acrobats
subtype: tone_arm__pickup__pickup_arm mechanical device consisting of a light balanced arm that carries the cartridge
subtype: trap.mechanical_device a device to hurl clay pigeons into the air for trapshooters
subtype: vibrator mechanical device that produces vibratory motion; used for massage
subtype: voting_machine a mechanical device for recording and counting votes mechanically
subtype: weathervane__wind_vane mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
subtype: weathercock weathervane with a vane in the form of a rooster
subtype: wind_tee weather vane shaped like a T and located at an airfield
subtype: wheelwork mechanical device including an arrangement of wheel in a machine (especially a train of gears)
subtype: gearing__gears__gear__geartrain__power_train__powertrain__train wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed; "the fool got his tie caught in the geartrain"
subtype: epicyclic_train__epicyclictrain__epicyclic_gear_train a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
subtype: reduction_gear__reductiongear gearing that reduces an input speed to a slower output speed
subtype: winder mechanical device around which something can be wound
subtype: bobbin__spool__reel a winder around which thread or tape or film or other flexible materials can be wound
subtype: filature a bobbin used in spinning silk into thread
subtype: shuttle bobbin that passes the weft thread between the warp threads
subtype: reel.winder winder consisting of a revolving spool with a handle; attached to a fishing rod
subtype: winder.mechanical_device__key mechanical device used to wind another device that is driven by a spring (as a clock)
subtype: watch_key__watchkey winder consisting of a key with a square hole; used for winding some watches
subtype: windshield_wiper__windscreen_wiper__wiper__wiper_blade a mechanical device that cleans the windshield
subtype: radiator.mechanism a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan
subtype: rotating_mechanism a mechanism that rotates
subtype: blade.rotating_mechanism__vane flat surface that rotates and pushes against air or water
subtype: fan_blade__fanblade blade of a rotating fan
subtype: impeller the blade of a rotor (as in the compressor of a jet engine)
subtype: paddle.blade a blade of a paddle wheel or water wheel
subtype: rudder_blade the vertical blade on a rudder
subtype: cam a rotating disk shaped to convert circular into linear motion
subtype: distributor_cam__distributorcam the cam inside the distributor that rotates to contact spark plug terminals in the correct order
subtype: circle.rotating_mechanism__round any circular or rotating mechanism; "the machine punched out metal circles"
subtype: disk__disc a thin flat circular plate
subtype: acetate_disk__acetatedisk__phonograph_recording_disk a disk coated with cellulose acetate
subtype: brake_disk__brakedisk the brake disk plate is fixed to the wheel; pressure is applied to it by the brake pads
subtype: diaphragm electro-acoustic transducer that vibrates to receive or produce sound waves
subtype: discus.disk__saucer a disk used in throwing competitions
subtype: Frisbee (trademark) a light plastic disk about 10 inches in diameter; sailed with a flip of the wrist for recreation or competition
subtype: planchet__coin_blank a flat metal disk ready for stamping as a coin
subtype: hockey_puck__puck a vulcanized rubber disk 3 inches in diameter that is used instead of a ball in ice hockey
subtype: token a metal or plastic disk that can be used (as a substitute for coins) in slot machines
subtype: subway_token a token that is used to pay for entry to the subway system
subtype: Ferris_wheel rotating mechanism consisting of a large upright wheel with suspended seats that remain upright as the wheel turns; provides a ride at an amusement park
subtype: gyroscope__gyro rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction
subtype: rotor rotating mechanism consisting of an assembly of rotating airfoils; horizontal rotors on a helicopter or compressor rotors of a jet engine
subtype: main_rotor rotor consisting of large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the air
subtype: tail_rotor__anti-torque_rotor rotor consisting of a rotating airfoil on the tail of a single-rotor helicopter; keeps the helicopter from spinning in the direction opposite to the rotation of the main rotor
subtype: steering_linkage mechanism consisting of a system of rods and levers connected to the front wheels of a motor vehicle; the steering gear pushes the steering linkage left or right which swivels the front wheels causing the vehicle to turn
subtype: steering_system__steering_mechanism a mechanism by which something is steered (especially a motor vehicle)
subtype: helm.steering_system steering mechanism for a vessel; a mechanical device by which a vessel is steered
subtype: wheel.helm a circular helm to control the rudder of a vessel
subtype: power_steering__powersteering__powerassistedsteering automotive steering where engineer power amplifies the torque applied to the steering wheel
subtype: rudder.steering_system (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel
subtype: tape_drive__tape_transport__transport a mechanism that transport magnetic tape across the read/write heads of a tape playback/recorder
subtype: whirler a revolving mechanism
subtype: works__work__workings the internal mechanism of a device
subtype: memory_device__storage_device__storagedevice a device that preserves information for retrieval
subtype: acoustic_storage a storage device consisting of acoustic delay lines
subtype: auxiliary_storage__auxiliarystorage__external_storage__secondary_storage__secondarystorage a data storage device that is not the main memory of a computer
subtype: buffer_storage__buffer__buffer_store (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system
subtype: memory_cache__cache (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics
subtype: disk_cache a cache that stores copies of frequently used disk sectors in random access memory (RAM) so they can be read without accessing the slower disk
subtype: frame_buffer__framebuffer (in computer graphics) a buffer that stores the contents of an image pixel by pixel
subtype: keyboard_buffer a buffer that keeps track of key strokes until the computer is ready to respond to them
subtype: print_buffer__printbuffer a buffer that stores data until the printer is ready
subtype: magnetic_disk__magnetic_disc__disk__disc (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
subtype: diskette__floppy__floppy_disk a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer; "floppy disks are noted for their relatively slow speed and small capacity and low price"
subtype: hard_disc__hard_disk__fixed_disk__fixeddisk a rigid magnetic disk mounted permanently in a drive unit
subtype: removable_disk__removabledisk a hard disk that can be removed from the disk drive; removal prevents unauthorized use
subtype: magnetic_tape__mag_tape__magtape memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information; "he took along a dozen tapes to record the interview"
subtype: audiotape magnetic tape for use in recording sound
subtype: cassette_tape a cassette that contains magnetic tape
subtype: videotape a relatively wide magnetic tape for use in recording visual images and associated sound
subtype: memory_board__memory__storage__store an electronic memory device; "a memory and the CPU form the central part of a computer to which peripherals are attached"
subtype: RAM__random-access_memory__random_access_memory__random_memory__read/write_memory the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible
subtype: ROM__read-only_memory__read-only_storage__fixed_storage__fixedstorage (computer science) memory whose contents can be accessed and read but cannot be changed
subtype: CD-ROM__compact_disc_read-only_memory a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
subtype: EPROM__erasable_programmable_read-only_memory (computer science) a read-only memory chip that can be erased by ultraviolet light and programmed again with new data
subtype: real_storage the main memory in a virtual memory system
subtype: scratchpad (computer) a high-speed internal memory used for temporary storage of preliminary information
subtype: virtual_memory__virtualmemory__virtual_storage__virtualstorage (computer science) memory created by using the hard disk to simulate additional random-access memory; the addressable storage space available to the user of a computer system in which virtual addresses are mapped into real addresses
subtype: push-down_storage__push-down_store__pushdownstore__stack a storage device that handles data so that the next item to be retrieved is the item most recently stored (LIFO)
subtype: recording.memory_device a storage device on which information (sounds or images) have been recorded
subtype: compact_disk__compactdisk__compact_disc__compactdisc__CD a recording that is smaller than a phonograph record; played back by a laser
subtype: audio_CD__audio_compact_disc__audiocompactdisc compact discs used to reproduce sound (voice and music)
subtype: CD-R__compact_disc_recordable__CD-WO__compact_disc_write-once a compact disc on which you can write only once and thereafter is read-only memory
subtype: CD-ROM__compact_disc_read-only_memory a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
subtype: sound_recording__audio_recording a recording of just the sound
subtype: audiotape.tape_recording a tape recording of sound
subtype: digital_audiotape__digitalaudiotape__DAT an audiotape recording of sound
subtype: phonograph_record__phonograph_recording__record__disk__disc__platter sound recording consisting of a disc with continuous grooves; formerly used to reproduce music by rotating while a phonograph needle tracked in the grooves
subtype: LP__L-P a long-playing phonograph record; designed to be played at 33.3 rpm
subtype: soundtrack sound recording on a narrow strip of a motion picture film
subtype: dubbing a new soundtrack that is added to a film
subtype: talking_book__talkingbook sound recording of someone reading a book; frequently used by blind people
subtype: tape_recording__tape__taping a recording made on magnetic tape; "the several recordings were combined on a master tape"
subtype: audiotape.tape_recording a tape recording of sound
subtype: videotape.tape_recording a video recording made on magnetic tape
subtype: transcription a recording (e.g., from broadcast to tape recording)
subtype: video_recording a recording of both the video and audio components
subtype: videotape.tape_recording a video recording made on magnetic tape
subtype: register.memory_device (computer science) memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind
subtype: accumulator_register__accumulatorregister__accumulator (computer science) a register that has a built-in adder that adds an input number to the contents of the accumulator
subtype: counter.register (computer science) a register whose contents go through a regular series of states (usually states indicating consecutive integers)
subtype: index_register__indexregister (computer science) a register used to determine the address of an operand
subtype: shift_register__shiftregister (computer science) register in which all bits can be shifted one or more positions to the left or to the right
subtype: nest_egg device consisting of an artificial egg left in a nest to induce hens to lay their eggs in it
subtype: noisemaker a device (such as a clapper or bell or horn) used to make a loud noise at a celebration
subtype: optical_device__opticaldevice a device for producing or controlling light
subtype: override a manually operated device to correct the operation of an automatic device
subtype: plectrum__pick__plectron a small thin device (of metal or plastic or ivory) used to pluck a stringed instrument
subtype: prod__goad a pointed instrument used to prod into motion
subtype: prompter__autocue a device that displays words for people to read
subtype: pull.device a device used for pulling something; "he grabbed the pull and opened the drawer"
subtype: reflector device that reflects radiation
subtype: remote_control__remote a device used to control a machine or apparatus from a distance; "he lost the remote for his TV"
subtype: reset device for resetting instruments or controls
subtype: restraint.device__constraint a device that stops something from moving; "the car did not have proper restraints fitted"
subtype: router.device (computer science) a device that forwards data packets between computer networks
subtype: runner.device device consisting of the parts on which something can slide along
subtype: scratcher a device used for scratching
subtype: shoehorn a device used for easing the foot into a shoe
subtype: shoetree a wooden or metal device that is inserted into a shoe to preserve its shape when it is not being worn
subtype: shooting_stick device that resembles a spiked walking stick but the top opens into a seat
subtype: signaling_device__signalingdevice a device used to send signals
subtype: snowshoe a device to help you walk on deep snow; a lightweight frame shaped like a racquet is strengthened with cross pieces and contains a network of thongs; one is worn on each foot
subtype: sounder a device for making soundings
subtype: source_of_illumination any device serving as a source of visible electromagnetic radiation
subtype: stabilizer a device for making something stable
subtype: stencil device that has a sheet perforated with printing through which ink or paint can pass to create a printed pattern
subtype: straightener a device for straightening; "a hair straightener"
subtype: strengthener__reinforcement a device designed to provide additional strength; "the cardboard backing was just a strengthener,"; "he used gummed reinforcements to hold the page in his notebook"
subtype: stylus a sharp pointed device attached to the cartridge of a record player
subtype: support.device any device that bears the weight of another thing; "there was no place to attach supports for a shelf"
subtype: sweatbox a device that causes tobacco leaves or fruit or hides to sweat
subtype: synchroflash a device used in photography to synchronize the peak of a flash with the opening of the camera shutter
subtype: take-up.device__takeup a device for reducing slack or taking up lost motion
subtype: throwing_board__throwing_stick__spear_thrower__spearthrower__dart_thrower a sling-like device used in various primitive societies to propel a dart or spear
subtype: tilter a device for emptying a cask by tilting it without disturbing the dregs
subtype: pair_of_tongs__tongs__tong any of various devices for taking hold of objects; usually have two hinged legs with handles above and pointed hooks below
subtype: trap a device in which something (usually an animal) can be caught and penned
subtype: valve.device device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
subtype: ventilator a device (such as a fan) that introduces fresh air or expels foul air
subtype: washboard device consisting of a corrugated surface to scrub clothes on
subtype: water_cooler__watercooler a device for cooling and dispensing drinking water
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