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plenum system

British  

noun

  1. a type of air-conditioning system in which air is passed into a room at a pressure greater than atmospheric pressure

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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An engineroom plenum system draws combustion air from beneath the cockpit coaming, eliminating the need for hullside vents and increasing the opportunity to separate air and water.

From Time Magazine Archive