A kind of proportional counter that detects charged particles and photons and can give positional information on their trajectory, by tracking the trails of gaseous ionization.

A room used by divers to gradually readjust to normal air pressure.

(government, rare) The single legislative chamber of a unicameral legislature.

plural of chamber gate

A gate system in a fortification, comprising two or more successive gateways linked by an easily defended passageway between two walls.

(medicine) a pressurized vessel used to administer oxygen at elevated pressure

(inorganic chemistry) An industrial method for the production of sulphuric acid

plural of lead chamber process

(mineralogy) An orthorhombic-pyramidal mineral containing boron, chlorine, manganese, and oxygen.

A short candlestick with a pan at the base to catch dripping wax.