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vacua |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Vacuum \Vac"u*um\, n.; pl E. {Vacuums}, L. {Vacua}. [L., fr vacuus empty. See {Vacuous}.] 1. (Physics) A space entirely devoid of matter (called also by way of distinction, absolute vacuum); hence in a more general sense a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means as water boils at a reduced temperature in a vacuum.
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