plenum definition, plenum meaning | English dictionary

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      n   pl   , -nums, -na  
1    an enclosure containing gas at a higher pressure than the surrounding environment  
2    a fully attended meeting or assembly, esp. of a legislative body  
3    (esp. in the philosophy of the Stoics) space regarded as filled with matter  
   Compare       vacuum       1  
4    the condition or quality of being full  
     (C17: from Latin: space filled by matter, from plenus full)  

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