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Vacuum 1Definition: 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.
Vacuum 2Definition: The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of inches of mercury, or pounds per square inch. vacuum 3Definition: an electrical home appliance that cleans by suction vacuum 4Definition: a region empty of matter vacuum 5Definition: an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he''ll be ruling in a vacuum" vacuum 6Definition: the absence of matter vacuum 7Definition: clean with a vacuum cleaner; "vacuum the carpets"
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