Vacuum
now means a space from which air has been expelled. Descartes
says, “If a vacuum could be effected in a vessel the sides would be
pressed into contact.” Galileo said, “Nature abhors a vacuum,” to
account for the rise of water in pumps. (See Point.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894 More on Vacuum from Fact Monster:
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