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Webster's Dictionary 1828 - Online Edition

Webster's Dictionary 1828

Americal Dictionary of the English Language

American Dictionary
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Vacuum

VAC'UUM, noun [Latin] Space empty or devoid of all matter or body. Whether there is such a thing as an absolute vacuum in nature, is a question which has been much controverted. The Peripatetics assert that nature abhors a vacuum

Torricellian vacuum the vacuum produced by filling a tube with mercury, and allowing it to descend till it is counterbalanced by the weight of the atmosphere, as in the barometer invented by Torricelli.