Meaning of plenum
Pronunciation: (plē'num, plen'um), [key]
— pl. ple•nums, ple•na
- the state or a space in which a gas, usually air, is contained at a pressure greater than atmospheric pressure.
- a full assembly, as a joint legislative assembly.
- a space, usually above a ceiling or below a floor, that can serve as a receiving chamber for air that has been heated or cooled to be distributed to inhabited areas.
- the whole of space regarded as being filled with matter (opposed to vacuum).
- plenum (Thesaurus)