plenum

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ple·num

 (plē′nəm, plĕn′əm)
n. pl. ple·nums or ple·na (plē′nə, plĕn′ə)
1. An assembly or meeting with all members present.
2. A condition, space, or enclosure in which air or other gas is at a pressure greater than that of the outside atmosphere.
3. The condition of being full; fullness.
4. A space completely filled with matter.
5. A space lying above the ceiling in a building but below the next floor, especially one allowing movement of air between parts of the building.

[Latin plēnum (spatium), full (space), neuter of plēnus; see pelə- in Indo-European roots.]

plenum

(ˈpliːnəm)
n, pl -nums or -na (-nə)
1. (General Physics) an enclosure containing gas at a higher pressure than the surrounding environment
2. (Government, Politics & Diplomacy) a fully attended meeting or assembly, esp of a legislative body
3. (Philosophy) (esp in the philosophy of the Stoics) space regarded as filled with matter. Compare vacuum1
4. the condition or quality of being full
[C17: from Latin: space filled by matter, from plēnus full]

ple•num

(ˈpli nəm, ˈplɛn əm)

n., pl. ple•nums, ple•na (ˈpli nə, ˈplɛn ə)
1.
a. the space in which a gas, usu. air, is contained at a pressure greater than atmospheric pressure.
b. the gas in such a state.
2. a full assembly, as a joint legislative assembly.
3. a space serving as a receiving chamber for heated or cooled air.
[1670–80; < Latin, neuter of plēnus full1, in the phrase plēnum(spatium) full (space)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.plenum - a meeting of a legislative body at which all members are present; "the plenum will vote on all tax increases"
group meeting, meeting - a formally arranged gathering; "next year the meeting will be in Chicago"; "the meeting elected a chairperson"
2.plenum - an enclosed space in which the air pressure is higher than outside
enclosure - a structure consisting of an area that has been enclosed for some purpose
Translations

plenum

[ˈpliːnəm] N (plenums or plena (pl)) → pleno m

plenum

nPlenum nt, → Vollversammlung f
References in classic literature ?
Evil do I call it and misanthropic: all that teaching about the one, and the plenum, and the unmoved, and the sufficient, and the imperishable!
As the ancient said, the world is a plenum or solid; and if we saw all things that really surround us we should be imprisoned and unable to move.
While FNM is efficient from the perspective of implementation and computation, the assumption of a uniformly pressurized plenum may only apply to ideal scenarios, such as those featuring restrictive tiles and deep plenums.
The Communist Movement at a Crossroads: Plenums of the Communist International's Executive Committee, 1922-1923
Table 2 shows options for discharge plenums from VAV boxes.
At the second meeting between representatives of the Student and Professors Plenums, the Ministry of Education, the Government, and the University of Ss Cyril and Methodius on Tuesday, it was decided that a completely new higher education law should be drafted.
The metric most commonly used to characterize the sound attenuation of plenums is insertion loss.
The JetPlate system is based upon two facing plenums that serve both to deliver air and act as guide rails.
This document provides requirements for materials contained in ducts and plenums associated with the air-conditioning and ventilating system.
The pressure increases in the distributor and decreases in the collector are caused by changes in fluid velocity in the respective plenums. Reductions in the magnitude of the velocity changes, or a reduction of the inlet feed velocity, can be achieved by several means, such as reducing the number of channels in a bank, using narrower channels, increasing the number of plenums or enlarging the plenum diameters.
RW was selected to provide the 864 cells and utility plenums for the Federal Correctional Institution at Pollack.
These new rules make it a violation to have abandoned wires in your building's risers or plenums and mandate the use of specific wiring that meets certain flame-retardant standards.