1. Molecules in the gaseous phase of a solid or liquid substance exposed to a gas. 2. A visible emanation of fine particles of a liquid. 3. A medicinal preparation to be administered by inhalation. [L. steam]
- anesthetic v. the gaseous phase of a liquid anesthetic with sufficient partial pressure at room temperature to produce general anesthesia when inhaled.
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va·por or chiefly Brit va·pour 'vā-pər n
1 a) a substance in the gaseous state as distinguished from the liquid or solid state
b) a substance (as alcohol or benzoin) vaporized for industrial, therapeutic, or military uses
a) exhalations of bodily organs (as the stomach) formerly held to affect the physical or mental condition
b) a depressed or hysterical nervous condition
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va·por (vaґpər) pl. vapoґres, vapors [L.] 1. an atmospheric dispersion of a substance that in its normal state is a liquid or solid. 2. steam, gas, or an exhalation.Medical dictionary. 2011.