Plenum may refer to:
*
Plenum chamber, a chamber intended to contain air, gas, or liquid at positive pressure
* Plenism, or
''Horror vacui'' (physics) the concept that "nature abhors a vacuum"
*
Plenum (meeting), a meeting of a deliberative assembly in which all members are present; contrast with
quorum
A quorum is the minimum number of members of a deliberative assembly (a body that uses parliamentary procedure, such as a legislature) necessary to conduct the business of that group. According to ''Robert's Rules of Order Newly Revised'', the ...
*
Plenum space, enclosed spaces (in buildings) used for airflow
*
Plenum cable, electrical wire permitted in plenum spaces per building codes
*
Plenum Publishing Corporation, a publisher of scientific books and journals
*
Plenum (physics)
Luminiferous aether or ether ("luminiferous", meaning "light-bearing") was the postulated medium for the propagation of light. It was invoked to explain the ability of the apparently wave-based light to propagate through empty space (a vacuum) ...
, a space completely filled with matter
*
Undergravel filters, in aquarium filtration, an open space under a layer of gravel or sand
*
Air-mixing plenum, a place where ducts meet
See also
*
Plenary (disambiguation)
Plenary is an adjective related to the noun plenum carrying a general connotation of fullness.
Plenary may also refer to:
*Plenary session or meeting, the part of a conference when all members of all parties are in attendance
**Plenary speaker, ...
, the related adjective
{{disambiguation