#chamber  a natural or artificial enclosed space
  supertype:  enclosure  artifact consisting of a space that has been enclosed for some purpose
  subtype:  airlock__air_lock__airlock  a chamber that provides access to space where air is under pressure
  subtype:  burial_chamber__sepulcher__sepulchre  a chamber that is used as a grave
     subtype:  crypt  a cellar or vault or underground burial chamber (especially beneath a church)
     subtype:  mausoleum  a large burial chamber, usually above ground
        subtype:  Taj_Mahal  beautiful mausoleum at Agra built by the Mogul emperor Shah Jahan (completed in 1649) in memory of his favorite wife
     subtype:  repository.burial_chamber__monument  a burial vault (usually for some famous person)
     subtype:  burial_vault__vault  a burial chamber (usually underground)
        subtype:  charnel_house__charnelhouse__charnel  a vault or building where corpses or bones are deposited
  subtype:  pneumatic_caisson__pneumaticcaisson__caisson  large watertight chamber used for construction under water
  subtype:  camera_obscura  a darkened enclosure in which images of outside objects are projected through a small aperture or lens onto a facing surface
  subtype:  core.chamber  the chamber of a nuclear reactor containing the fissile material where the reaction takes place
  subtype:  piston_chamber__cylinder  a chamber within which piston moves
     subtype:  hydraulic_brake_cylinder__hydraulicbrakecylinder__brake_cylinder__brakecylinder__master_cylinder  a cylinder that contains brake fluid that is compressed by a piston
  subtype:  firing_chamber__gun_chamber  chamber that is the part of a gun that receives the charge
  subtype:  furnace  an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
     subtype:  blast_furnace__blastfurnace  a furnace for smelting of iron from iron oxide ores; combustion is intensified by a blast of air
     subtype:  cremation_chamber__cremationchamber__crematory__crematorium  a furnace where a corpse can be burned and reduced to ashes
        subtype:  gas_oven.cremation_chamber__gasoven  a cremation chamber fueled by gas
     subtype:  cupola.furnace  a vertical cylindrical furnace for melting iron for casting
     subtype:  electric_furnace  any furnace in which the heat is provided by an electric current
        subtype:  Stassano_furnace__electric-arc_furnace  an electric furnace in which an electric arc provides the source of heat for making steel
     subtype:  firebox  a furnace (as on a steam locomotive) in which fuel is burned
     subtype:  forge  furnace consisting of a special hearth where metal is heated before shaping
     subtype:  gas_furnace__gasfurnace  a furnace that burns gas
     subtype:  incinerator  a furnace for incinerating (especially to dispose of refuse)
     subtype:  oil_burner__oilburner__oil_furnace__oilfurnace  a furnace that burns oil
     subtype:  tank_furnace  furnace into one end of which a batch of measured raw materials is shoveled and from the other end molten glass is obtained
  subtype:  hyperbaric_chamber  a large chamber in which the oxygen pressure is above normal for the atmosphere; used in treating breathing disorders or carbon monoxide poisoning
  subtype:  cavity_resonator__resonator__resonating_chamber  a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
     subtype:  soundbox  a resonating chamber in a musical instrument (as the body of a violin)
     subtype:  soundboard__sounding_board  (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
  subtype:  steam_chest  the chamber from which steam is distributed to a cylinder
  subtype:  stokehold__stokehole__fireroom  (nautical) chamber or compartment in which the furnaces of a ship are stoked or fired
  subtype:  stuffing_box__packing_box__packingbox  a small chamber in which packing is compressed around a reciprocating shaft or piston to form a seal
  subtype:  tokamak  a doughnut-shaped chamber used in fusion research; a plasma is heated and confined in a magnetic bottle
  subtype:  vacuum_chamber  a chamber from which nearly all matter (especially air) has been removed

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