Look up: plenum

1. plenum
   [n] - an enclosed space in which the air pressure is higher than outside
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Plenum
   The air handing space between walls, under structural floors, and above drop ceilings, which can be used to route intrabuilding cabling.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. plenum
   airtight chamber containing fluid-flow sink such as operative airbreathing engine Category: Transport
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. Plenum
   Ple'num noun [ Latin , from plenus full.] That state in which every part of space is supposed to be full of matter; -- opposed to vacuum . G. Francis.
   Found on http://www.encyclo.co.uk/webster/P/106
   
   
5. Plenum
   Ple'num noun (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.
   Found on http://www.encyclo.co.uk/webster/P/106
   
   
6. plenum
   noun an enclosed space in which the air pressure is higher than outside
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
7. plenum
   noun a meeting of a legislative body at which all members are present; `the plenum will vote on all tax increases`
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
8. Plenum
   • (n.) 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. • (n.) That state in which every part of space is supposed to be full of matter; -- opposed to vacuum.
   Found on http://thinkexist.com/dictionary/meaning
   
   
9. Plenum
   The ceiling plenum is the volume defined by the area above the back of the ceiling tile, and below the bottom of the structural slab above. Within this plenum is usually found a combination of HVAC ducts, electrical and electronic conduits, water pipes, traditional masking sound speakers, etc
   Found on http://www.armstrong.com/commceilingsna/
   
   
10. Plenum
    - The main hot-air supply duct leading from a furnace.
    Found on http://www.homebuildingmanual.com/Glossa
    
    
11. Plenum
    The space between a hanging ceiling and the floor above or roof; usually contains HVAC ducts, electrical wiring, fire suppression system piping, etc.
    Found on http://www.electromn.com/glossary/p.htm