Plenum - Dictionary Definition and Overview

Plenum :  (noun)
1: a meeting of a legislative body at which all members are present; "the plenum will vote on all tax increases"
2: an enclosed space in which the air pressure is higher than outside

Based on WordNet 2.0

Plenum : \Ple"num\, n. (Ventilation) A condition, as in an occupied room, in which the pressure of the air is greater than that of the outside atmosphere; as, a plenum may exist in a hall ventilated by a fan blower.

Based on Webster's Revised Unabridged Dictionary

Plenum : \Ple"num\, n. [L., fr. plenus full.] That state in which every part of space is supposed to be full of matter; -- opposed to vacuum. --G. Francis.

Based on Webster's Revised Unabridged Dictionary (1913)
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