pm#physical/spatial_unit_of_measure
exclusion: pm#unit_of_time_duration pm#unit_of_measure_for_a_process pm#unit_of_measure_for_a_psychological_attribute pm#unit_of_measure_for_a_social_attribute
supertype: pm#physical/spatial_attribute_or_quality_or_measure pm#unit_of_measure
subtype: pm#spatial_unit_of_measure
subtype: #linear_measure__long_measure a measure of length
subtype: #linear_unit a unit of measurement of length
subtype: #astronomy_unit__astronomyunit a linear unit used for astronomical distances
subtype: #light_year__lightyear the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
subtype: #light_hour__lighthour the distance light travels in a vacuum in one hour; approximately one billion kilometers
subtype: #light_minute__lightminute the distance light travels in a vacuum in one minute; approximately 18 million kilometers
subtype: #light_second__lightsecond the distance light travels in a vacuum in one second; approximately 300,000 kilometers
subtype: #Astronomical_Unit__AU a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)
subtype: #parsec__secpar a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
subtype: #metric_linear_unit a linear unit of distance in metric terms
subtype: #femtometer__femtometre__fermi a metric unit of length equal to one quadrillionth of a meter
subtype: #picometer__picometre__micromicron a metric unit of length equal to one trillionth of a meter
subtype: #angstrom_unit__angstrom__A a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
subtype: #nanometer__nanometre__millimicron__micromillimetre a metric unit of length equal to one billionth of a meter
subtype: #micron__micrometer a metric unit of length equal to one millionth of a meter
subtype: #millimeter__millimetre__mm a metric unit of length equal to one thousandth of a meter
subtype: #centimeter__centimetre__cm a metric unit of length equal to one hundredth of a meter
subtype: #decimeter__decimetre__dm a metric unit of length equal to one tenth of a meter
subtype: #meter__metre__m the basic unit of length adopted under the System International d'Unites (approximately 1.094 yards)
subtype: #decameter__dekameter__decametre__dekametre__dam__dkm a metric unit of length equal to ten meters
subtype: #hectometer__hectometre__hm a metric unit of length equal to 100 meters
subtype: #kilometer__kilometre__km__klick a metric unit of length equal to 1000 meters (or 0.621371 miles)
subtype: #myriameter__myriametre__mym a metric unit of length equal to 10,000 meters
subtype: #nautical_linear_unit a linear unit of distance used in navigation
subtype: #international_nautical_mile__nautical_mile__mile__mi__naut_mi__knot__air_mile__airmile a unit of length used in navigation; equivalent to the distance spanned by one minute of arc in latitude; 1,852 meters
subtype: #nautical_mile__naut_mi__mile__mi__geographical_mile__Admiralty_mile a British unit of length equivalent to 1,853.18 meters (6,082 feet)
subtype: #sea_mile__seamile__mile a former British unit of length once used in navigation; equivalent to 1828.8 meters (6000 feet)
subtype: #inch__in a unit of length (in United States and Britain) equal to one twelfth of a foot
subtype: #ft__foot a linear unit of length equal to 12 inches or a third of a yard; "he is six feet tall"
subtype: #footer (used only in combinations) the height or length of something in feet; "he is a six-footer" or "the golfer sank a 40-footer" or "his yacht is a 60-footer"
subtype: #yard__pace a unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average length of a stride
subtype: #perch.linear_unit__rod (British) a linear measure of 16.5 feet
subtype: #furlong a unit of length equal to 220 yards
subtype: #statute_mile__statutemile__mile__stat_mi__land_mile__mi a unit of length equal to 1760 yards
subtype: #half_mile__880_yards__880yard a unit of length equal to half of 1 mile
subtype: #quarter_mile__quartermile__440_yards__440yard a unit of length equal to a quarter of 1 mile
subtype: #league.linear_unit an obsolete unit of distance of variable length (usually 3 miles)
subtype: #ligne a linear unit (1/40 inch) used to measure diameter of buttons
subtype: #nail.linear_unit a former unit of length for cloth equal to 1/16 of a yard
subtype: #archine a Russian unit of length (71 cm)
subtype: #kos__ko__coss an Indian unit of length having different values in different localities
subtype: #vara a Spanish unit of length (about a yard) having different values in different localities
subtype: #verst a Russian unit of length (1.067 km)
subtype: #cable_length__cablelength__cable__cable's_length__cable'slength a nautical unit of depth
subtype: #chain.linear_unit a unit of length
subtype: #Gunter's_chain a unit of length (22 yards)
subtype: #engineer's_chain a unit of length (100 ft)
subtype: #nautical_chain a nautical unit of length (15 ft)
subtype: #cubit an ancient unit of length based on the length of the forearm
subtype: #fingerbreadth__finger__finger's_breadth__digit the length of breadth of a finger used as a linear measure
subtype: #body_length the length of your body
subtype: #handbreadth__handsbreadth any unit of length based on the breadth of the human hand
subtype: #hand.handbreadth a unit of length equal to 4 inches; used in measuring horses; "the horse stood 20 hands"
subtype: #head.linear_unit the length or height based on the size of a human or animal head; "he is two heads taller than his little sister"; "his horse won by a head"
subtype: #lea a unit of length of thread or yarn
subtype: #li Chinese distance measure; approximately 0.5 kilometers
subtype: #link.linear_unit a unit of length equal to 1/100 of a chain
subtype: #mesh the number of opening per inch of a screen; measures size of particles; "a 100 mesh screen" or "100 mesh powdered cellulose"
subtype: #mil a unit of length equal to one thousandth of an inch; used to specify thickness (e.g., of sheets or wire)
subtype: #Swedish_mile__mile a Swedish unit of length equivalent to 10 km
subtype: #Roman_mile__mile an ancient Roman unit of length equivalent to 1620 yards
subtype: #Roman_pace an ancient Roman unit of length (4.85 English feet) measured as the distance from the heel of one foot to the heel of the same foot when next it touches the ground
subtype: #geometric_pace__geometricpace a modern version of the Roman pace now taken to be 5 feet
subtype: #military_pace the length of a single step in marching (taken to be 30 inches for quick time or 36 inches for double time)
subtype: #palm a linear unit based on the length or width of the human hand
subtype: #span.linear_unit a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
subtype: #fthm__fathom a linear unit of measurement (equal to 6 feet) for water depth
subtype: #point.linear_unit a linear unit used to measure the size of type; approximately 1/72 inch
subtype: #pica_em__em__pica a linear unit (1/6 inch) used in printing
subtype: #en__nut half the width of an em
subtype: #cicero a linear unit of the size of type slightly larger than an em
subtype: #angular_unit__angularunit a unit of measurement for angles
subtype: #mil.angular_unit an angular unit used in artillery; equal to 1/6400 of a complete revolution
subtype: #arcdegree__degree a measure for arcs and angles; "there are 360 degrees in a circle"
subtype: #arcsecond__second a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here"
subtype: #minute_of_arc__minute__arcminute a unit of angular distance equal to a 60th of a degree
subtype: #microradian a unit of angular distance equal to one thousandth of a milliradian
subtype: #milliradian a unit of angular distance equal to one thousandth of a radian
subtype: #radian__rad the unit of plane angle adopted under the System International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
subtype: #grad__grade one-hundredth of a right angle
subtype: #oxtant a unit of angular distance equal to half a quadrant
subtype: #sextant.angular_unit a unit of angular distance equal to 60 degrees
subtype: #quadrant.angular_unit__right_angle__rightangle a quarter of the circumference of a circle
subtype: #straight_angle an angle of 180 degrees
subtype: #steradian__sr the unit of solid angle adopted under the System International d'Unites
subtype: #area_unit__square_measure a system of units used to measure areas
subtype: #square_inch__sq_in a unit of area equal to one inch by one inch square
subtype: #square_foot__sq_ft a unit of area equal to one foot by one foot square
subtype: #square_yard__sq_yd a unit of area equal to one yard by one yard square
subtype: #square_meter__square_metre__centare a centare is 1/100th of an are
subtype: #square_mile an area of 640 acres
subtype: #section.square_mile a land unit of 1 square mile measuring 1 mile on a side
subtype: #quarter_section__quartersection a land unit equal to a quarter of a section (160 acres) and measuring 1/2 mile on a side
subtype: #acre a unit of area (4840 square yards) used in English-speaking countries
subtype: #are a unit of surface area equal to 100 square meters
subtype: #hectare (abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters)
subtype: #arpent a former French unit of area; equal approximately to an acre
subtype: #b (atomic or nuclear physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
subtype: #dessiatine a former Russian unit of area equal to 2.7 acres
subtype: #morgen a South African unit of measure equal to about 2 acres
subtype: #perch.area_unit__rod a square rod of land
subtype: #em__mutton__mut the square of a body of any size of type
subtype: #agate_line__agateline__line space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
subtype: #column_inch__inch a unit of measurement for advertising space
subtype: #volume_unit__capacity_unit__capacity_measure__cubage_unit__cubic_measure__cubicmeasure__cubic_content_unit__cubiccontentunit__displacement_unit__cubature_unit a unit of measurement of volume or capacity
subtype: #cubic_inch__cubicinch__cu_in the volume equal to a cube one inch on each side
subtype: #cubic_foot__cubicfoot__cu_ft the volume equal to a cube one foot on each side
subtype: #cord.volume_unit a unit of amount of wood cut for burning; 128 cubic feet
subtype: #liquid_unit__liquid_measure a unit of capacity for liquids (for measuring the volumes of liquids or their containers)
subtype: #United_States_liquid_unit a unit of measurement of capacity for liquids officially adopted in the United States Customary System
subtype: #minim a United States liquid unit equal to 1/60 fluidram
subtype: #fluidram__fluid_dram__fluiddram__fluiddrachm a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
subtype: #fluidounce__fluid_ounce a United States unit of capacity or volume equal to 1.804 cubic inches
subtype: #gill a United States liquid unit equal to 4 fluid ounces
subtype: #cup.United_States_liquid_unit a United States liquid unit equal to 8 fluid ounces
subtype: #pint a United States liquid unit equal to 16 fluid ounces; two pints equal one quart
subtype: #fifth a quantity of liquor equal to one fifth of a United States gallon
subtype: #quart a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon
subtype: #gallon__gal United States liquid unit equal to 4 quarts or 3.785 liters
subtype: #bbl__barrel any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"
subtype: #British_capacity_unit__Imperial_capacity_unit a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wet
subtype: #bbl__barrel any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"
subtype: #minim.British_capacity_unit a British imperial capacity measure (liquid or dry) equal to 1/60th fluid dram or 0.059194 cubic centimeters
subtype: #fluid_dram__fluiddram__fluid_drachm__fluiddrachm a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters
subtype: #fluid_ounce__fluidounce a British imperial unit of capacity or volume (liquid or dry) equal to 8 fluid drams or 28.416 cubic centimeters (1.734 cubic inches)
subtype: #gill.British_capacity_unit a British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters
subtype: #pint.British_capacity_unit a British imperial capacity measure (liquid or dry) equal to 4 gills or 568.26 cubic centimeters
subtype: #quart.British_capacity_unit a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters
subtype: #Imperial_gallon__gallon__congius__congiu a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters
subtype: #peck.British_capacity_unit a British imperial capacity measure (liquid or dry) equal to 2 gallons
subtype: #bushel.British_capacity_unit a British imperial capacity measure (liquid or dry) equal to 4 pecks
subtype: #firkin.British_capacity_unit a British unit of capacity equal to 9 imperial gallons
subtype: #kilderkin an obsolete British unit of capacity equal to 18 Imperial gallons
subtype: #quarter.British_capacity_unit (British) a quarter of a hundredweight (28 pounds)
subtype: #hogshead.British_capacity_unit a British unit of capacity for alcoholic beverages
subtype: #chaldron a British imperial capacity measure (liquid or dry) equal to 36 bushels
subtype: #arroba a liquid measure (with different values) used in some Spanish speaking countries
subtype: #bath.liquid_unit an ancient Hebrew liquid measure equal to about 10 gallons
subtype: #mutchkin a Scottish unit of liquid measure equal to 0.9 United States pint
subtype: #oka a Turkish liquid unit equal to 1.3 pints
subtype: #dry_unit__dryunit__dry_measure__drymeasure a unit of capacity for dry commodities (as fruit or grain)
subtype: #British_capacity_unit__Imperial_capacity_unit a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wet
subtype: #ardeb a unit of dry measure used in Egypt
subtype: #ephah__epha an ancient Hebrew unit of dry measure equal to about a bushel
subtype: #United_States_dry_unit a unit of measurement of capacity for dry substances officially adopted in the United States Customary System
subtype: #dry_pint__drypint a United States dry unit equal to 0.5 quart or 33.6 cubic inches
subtype: #dry_quart__quart a United States dry unit equal to 2 pints or 67.2 cubic inches
subtype: #peck a United States dry measure equal to 8 quarts or 537.605 cubic inches
subtype: #bushel a United States dry measure equal to 4 pecks or 2152.42 cubic inches
subtype: #metric_capacity_unit a capacity unit defined in metric terms
subtype: #cubic_millimeter__cubicmillimeter__cubicmillimetre a metric measure of volume or capacity equal to a cube 1 millimeter on each edge
subtype: #milliliter__millilitre__mil__ml__cubic_centimeter__cubiccentimeter__cubic_centimetre__cubiccentimetre__cc a metric unit of volume equal to one thousandth of a liter
subtype: #centiliter__centilitre__cl a metric unit of volume equal to one hundredth of a liter
subtype: #deciliter__decilitre__dl a metric unit of volume equal to one tenth of a liter
subtype: #liter__litre__l__cubic_decimeter__cubicdecimeter__cubic_decimetre__cubicdecimetre a metric unit of capacity equal to the volume of 1 kilogram of pure water at 4 degrees centigrade and 760 mm of mercury (or approximately 1.76 pints)
subtype: #dekaliter__dekalitre__decaliter__decalitre__dal__dkl a metric unit of volume or capacity equal to 10 liters
subtype: #hectoliter__hectolitre__hl a metric unit of volume or capacity equal to 100 liters
subtype: #kiloliter__kilolitre__cubic_meter__cubicmeter__cubic_metre__cubicmetre a metric unit of volume or capacity equal to 1000 liters
subtype: #cubic_kilometer__cubickilometer__cubic_kilometre__cubickilometre a unit of capacity equal to the volume of a cube one kilometer on each edge
subtype: #cran a capacity unit used for measuring fresh herring
subtype: #homer__kor an ancient Hebrew unit of capacity equal to 10 baths or 10 ephahs
subtype: #hin ancient Hebrew unit of liquid measure = 1.5 gallons
subtype: #fathom__fthm (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore
subtype: #acre-foot the volume of water that would cover 1 acre to a depth of 1 foot; 43,560 cubic feet or 1233.5 cubic meters
subtype: #acre_inch one twelfth of an acre-foot
subtype: #board_foot__boardfoot the volume of a piece of wood 1 foot square and 1 inch thick
subtype: #standard.volume_unit a board measure = 1980 board feet
subtype: #cubic_yard__cubicyard a unit of volume (as for sand or gravel)
subtype: #last.volume_unit (British) a unit of capacity for grain equal to 80 bushels
subtype: pm#unit_of_measure_for_a_physical_process
subtype: #acceleration_unit a unit for measuring acceleration
subtype: #gal.acceleration_unit a unit of gravitational acceleration equal to one centimeter per second per second (named after Galileo)
subtype: #work_unit__heat_unit__energy_unit a unit of measurement for work
subtype: #erg a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter
subtype: #electron_volt__eV__ev a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt
subtype: #joule__J__watt_second a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second
subtype: #small_calorie__smallcalorie__calorie__gramcalorie unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
subtype: #Calorie__kilogram_calorie__kilocalorie__largecalorie__nutritionist's_calorie a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food
subtype: #British_thermal_unit__BTU__Btu__btu__b.th.u. a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories
subtype: #therm a unit of heat equal to 100,000 British thermal units
subtype: #watt-hour a unit of energy equal to the power of one watt operating for one hour
subtype: #kilowatt_hour__kW-hr__Board_of_Trade_unit__B.T.U. a unit of energy equal to the work done by a power of 1000 watts operating for one hour
subtype: #foot-pound a unit of work equal to a force of one pound moving through a distance of one foot
subtype: #foot-ton 2240 foot-pounds
subtype: #foot-poundal a unit of work equal to a force of one poundal moving through a distance of one foot
subtype: #horsepower-hour a unit of work equal to the work done by one horsepower in one hour
subtype: #kilogram-meter a unit of work equal to the work done by a one kilogram force operating through a distance of one meter
subtype: pm#force_measure__forcemeasure
subtype: #force_unit__forceunit a unit of measurement of physical force
subtype: #dyne a unit of force equal to the force that imparts an acceleration of 1 cm/sec/sec to a mass of 1 gram
subtype: #newton__N a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes
subtype: #sthene a unit of force equal to 1000 newtons
subtype: #poundal__pdl a unit of force equal to the force that imparts an acceleration of 1 foot/sec/sec to a mass of 1 pound; equal to 0.1382 newtons
subtype: #lbf.__pound a nontechnical unit of force equal to the mass of 1 pound with an acceleration of free fall equal to 32 feet/sec/sec
subtype: #g__gee a unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated
subtype: #electromagnetic_unit__electromagneticunit__emu any of various systems of units for measuring electricity and magnetism
subtype: #capacitance_unit__capacitanceunit a measure of the capacity of a circuit component to store charge
subtype: #picofarad a unit of capacitance equal to one trillionth of a farad
subtype: #millifarad a unit of capacitance equal to one thousandth of a farad
subtype: #farad__F the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates
subtype: #abfarad a capacitance unit equal to one billion farads
subtype: #charge_unit__quantity_unit a measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows)
subtype: #coulomb__c__ampere-second a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second
subtype: #abcoulomb a unit of electrical charge equal to 10 coulombs
subtype: #ampere-minute a unit of charge equal to 60 coulombs
subtype: #ampere-hour a unit of charge equal to 3600 coulombs
subtype: #conductance_unit__conductanceunit a measure of a material's ability to conduct an electrical charge
subtype: #mho__siemens__siemen__reciprocal_ohm__S a unit of conductance equal to the reciprocal of an ohm
subtype: #current_unit__currentunit a measure of the amount of electric charge flowing past a circuit point at a specific time
subtype: #ampere__amp__A the basic unit of electric current adopted under the System International d'Unites; "a typical household circuit carries 15 to 50 amps"
subtype: #milliampere__mA__ma one thousandth of an ampere
subtype: #abampere__abamp a unit of current equal to 10 amperes
subtype: #international_ampere__internationalampere__ampere a former unit of electric current (slightly smaller than the SI ampere)
subtype: #elastance_unit__elastanceunit the reciprocal of capacitance
subtype: #daraf a unit of elastance equal to the reciprocal of a farad
subtype: #field_strength_unit an electromagnetic unit of magnetic intensity
subtype: #gamma.field_strength_unit a unit of magnetic field strength equal to one-hundred-thousandth of an oersted
subtype: #oersted the magnetic field strength 1 cm from a unit magnetic pole
subtype: #flux_density_unit a measure of the amount of flux per unit of cross sectional area
subtype: #microgauss a unit of magnetic flux density equal to one millionth of a gauss
subtype: #gauss__gaus a unit of magnetic flux density equal to 1 maxwell per square centimeter
subtype: #tesla a unit of magnetic flux density equal to one weber per square meter
subtype: #inductance_unit a measure of the property of an electric circuit by which an electromotive force is induced in it
subtype: #abhenry a unit of inductance equal to one billionth of a henry
subtype: #millihenry a unit of inductance equal to one thousandth of a henry
subtype: #henry__H a unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
subtype: #light_unit__lightunit a measure of the visible electromagnetic radiation
subtype: #illumination_unit a measure of illumination
subtype: #footcandle a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle
subtype: #lambert__l a cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter
subtype: #lux a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle
subtype: #phot a unit of illumination equal to 1 lumen per square centimeter; 10,000 phots equal 1 lux
subtype: #luminance_unit__luminanceunit a measure of luminance
subtype: #nit.luminance_unit a luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
subtype: #foot-lambert__ft-L a former luminance unit equal to one lumen per square foot
subtype: #luminous_flux_unit a measure of luminous flux per unit area
subtype: #lm__lumen a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
subtype: #luminous_intensity_unit__candlepower_unit__candlepowerunit a measure of luminous intensity
subtype: #standard_candle__candle__candela__cd the basic unit of luminous intensity adopted under the System International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin
subtype: #international_candle__internationalcandle a former international unit of luminous intensity; now replaced by the candela
subtype: #exposure.light_unit the intensity of light falling on a photographic film or plate; "he used the wrong exposure"
subtype: #overexposure.exposure exposure to too much light or for too long a time
subtype: #underexposure.exposure exposure to too little light or for too short a time
subtype: #magnetomotive_force_unit__magnetomotiveforceunit a unit of measurement of magnetomotive force
subtype: #gilbert__gb__Gi a unit of magnetomotive force equal to 0.7958 ampere-turns
subtype: #ampere-turn a unit of magnetomotive force equal to the magnetomotive force produced by the passage of 1 ampere through 1 complete turn of a coil; equal to 1.257 gilberts
subtype: #magneton a unit of magnetic moment of a molecular or atomic or subatomic particle
subtype: #potential_unit__potentialunit a measure of the potential energy of a unit charge at a give point in a circuit relative to a reference point (ground)
subtype: #abvolt a unit of potential equal to one-hundred-millionth of a volt
subtype: #millivolt__mV__mv a unit of potential equal to one thousandth of a volt
subtype: #volt__V a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it
subtype: #kilovolt__kV__kv a unit of potential equal to a thousand volts
subtype: #power_unit__powerunit a measure of electric power
subtype: #abwatt a power unit equal to the power dissipated when 1 abampere flows across a potential difference of 1 abvolt (one ten-thousandth of a milliwatt)
subtype: #milliwatt a unit of power equal to one thousandth of a watt
subtype: #watt__W a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm
subtype: #kilowatt__kW__kw a unit of power equal to 1000 watts
subtype: #megawatt a unit of power equal to one million watts
subtype: #horsepower__HP__H.P.__h.p.__hp a unit of power equal to 746 watts
subtype: #volt-ampere__var a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere
subtype: #kilovolt-ampere a unit of electrical power equal to 1000 volt-amperes
subtype: #radioactivity_unit__radioactivityunit a measure of radioactivity
subtype: #millicurie a unit of radioactivity equal to one thousandth of a curie
subtype: #curie__Ci a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second
subtype: #roentgen__R a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
subtype: #rutherford a unit strength of a radioactive source equal to one million disintegrations per second
subtype: #REM__rem (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays
subtype: #rad a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
subtype: #resistance_unit the reciprocal of conductance
subtype: #abohm a unit of resistance equal to a billionth of an ohm
subtype: #ohm a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere
subtype: #megohm a unit of resistance equal to one million ohms
subtype: #absorption_unit a unit for measuring absorption
subtype: #sabin a unit of acoustic absorption equivalent to the absorption by a square foot of a surface that absorbs all incident sound
subtype: #explosive_unit__explosiveunit any unit for measuring the force of explosions
subtype: #kiloton a measure of explosive power (of an atomic weapon) equal to that of 1000 tons of TNT
subtype: #megaton a measure of explosive power (of an atomic weapon) equal to that of one million tons of TNT
subtype: #pressure_unit a unit measuring force per unit area
subtype: #standard_atmosphere__atmosphere__atm__standardpressure a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
subtype: #STP__s.t.p. standard temperature and pressure
subtype: #pascal__Pa a unit of pressure equal to one newton per square meter
subtype: #torr__millimeter_of_mercury__mm_Hg a unit of pressure equal to 0.001316 atmosphere; named after Torricelli
subtype: #pounds_per_square_inch__psi a unit of pressure
subtype: #millibar a unit of atmospheric pressure equal to one thousandth of a bar; "atmospheric pressure at sea level is 1013 millibars"
subtype: #bar.pressure_unit a unit of pressure equal to a million dynes per square centimeter
subtype: #barye__barabsolute__microbar the absolute unit of pressure equal to one dyne per square centimeter
subtype: #metric_unit a decimal unit of measurement based on meters and kilograms and seconds
subtype: #metric_capacity_unit a capacity unit defined in metric terms
subtype: #metric_linear_unit a linear unit of distance in metric terms
subtype: #metric_weight_unit__weight_unit a decimal unit of weight based on the gram
subtype: #microgram__mcg one millionth of a gram
subtype: #milligram__mg 1/1000 gram
subtype: #metric_grain__grain used for pearls or diamonds: 50 mg or 1/4 carat
subtype: #decigram__dg 1/10 gram
subtype: #carat a unit of weight for precious stones = 200 mg
subtype: #gram__gramme__gm__g a metric unit of weight equal to one thousandth of a kilogram
subtype: #gram_atom__gram-atomic_weight the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element
subtype: #gram_molecule__mole__mol the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the System International d'Unites
subtype: #dekagram__decagram__dkg__dag 10 grams
subtype: #hectogram__hg 100 grams
subtype: #kilogram__kg__kilo__key one thousand grams; the basic unit of mass adopted under the System International d'Unites; "a kilogram is approximately 2.2 pounds"; "they were carrying two keys of heroin"
subtype: #myriagram__myg one ten thousandth of a centner
subtype: #centner in some European countries: a unit of weight equivalent to 50 kilograms
subtype: #metric_hundredweight__hundredweight__doppelzentner__centner a unit of weight equal to 100 kilograms
subtype: #quintal a unit of weight equal to 100 kilograms
subtype: #metric_ton__MT__tonne__t a unit of weight equivalent to 1000 kilograms
11 statements are about indirect instances of pm#physical/spatial_unit_of_measure: pm#graph1_on_work.energy, pm#graph1_on_electromagnetism, pm#graph1_on_radiation, pm#graph1_on_absorption, pm#graph1_on_explosion, pm#graph1_on_animal, pm#graph1_on_spamOnly@phmartin.info, dg#graph1_on_daniel.goodburn@dsto.defence.gov.au, GlassGuide#graph1_on_Corolla_AE93_CSI_manual_hatchback, pm#graph2_on_Corolla_AE93_CSI_manual_hatchback, vin#graph1_on_production click here to display them or click here for a search form or here to add a statement
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