Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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air chamber a compartment in which air is confined for a special use, as in a pump, a hydraulic fluid regulator, or a living organism.
chamber music music that is written for a small number of instruments, such as a string quartet, and suited for performance in an intimate setting.
chamber orchestra a small orchestra that plays pieces suited to its size.
chamber pot a small, portable, pot-shaped receptacle for urine and other waste, usu. kept in a bedroom, esp. one that is some distance from a toilet.
combustion chamber an engine chamber, esp. in a jet or rocket, in which fuel or a propellant is burned.
death chamber the room in which someone has died, is dying, or is to be put to death.
echo chamber a room in a recording or broadcasting studio that is used to increase resonance or produce echo effects.
gas chamber a sealed room in which prisoners are executed by means of poisonous gas.
ionization chamber a gas-filled vessel fitted with two electrodes in which the current between the electrodes is a function of the amount of ionization of the gas.
spark chamber any of several devices using a great number of parallel, oppositely charged metal plates in an inert gas to detect subatomic particles, rays, or the like, which make trails of sparks between the plates.
Star Chamber a former English tribunal, composed of royal councillors, that became notorious for its secret sessions, arbitrary judgments, and severe punishments. [2 definitions]