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noun, plural ple·nums, ple·na 
[plee-nuh, plen-uh] .
[plee-nuh, plen-uh] . 1.
the state or a space in which a gas, usually air, is contained at a pressure greater than atmospheric pressure.
2.
a full assembly, as a joint legislative assembly.
3.
a space, usually above a ceiling or below a floor, that can serve as a receiving chamber for air that has been heated or cooled to be distributed to inhabited areas.
4.
the whole of space regarded as being filled with matter (opposed to vacuum).
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Plenum
is always a great word to know.
So is ort. Does it mean:
| a scrap or morsel of food left at a meal. |
| a gadget; dingus; thingumbob. |
Collins
World English Dictionary
| plenum (ˈpliːnəm) | |
| —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. | Compare vacuum (esp in the philosophy of the Stoics) space regarded as filled with matter |
| 4. | the condition or quality of being full |
| [C17: from Latin: space filled by matter, from plēnus full] | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
plenum
1678, "filled space" (opposite of vacuum), from L. plenum (spatium) "full (space)," neuter of plenus "complete, full" (see plenary). The meaning "of a full assembly of legislators" is first recorded 1772.
Online Etymology Dictionary, © 2010 Douglas Harper
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