Definition of vapor

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Vapor (n.) A medicinal agent designed for administration in the form of inhaled vapor.

Lern More About Vapor

Boil :: Boil (v. t.) To form, or separate, by boiling or evaporation; as, to boil sugar or salt..
Sublimate :: Sublimate (v. t.) To bring by heat into the state of vapor, which, on cooling, returns again to the solid state; as, to sublimate sulphur or camphor..
Extract :: Extract (n.) A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant; -- distinguished from an abstract. See Abstract, n., 4..
Sudden :: Sudatory (n.) A bagnio; a sweating bath; a vapor bath.
Acrolein :: Acrolein (n.) A limpid, colorless, highly volatile liquid, obtained by the dehydration of glycerin, or the destructive distillation of neutral fats containing glycerin. Its vapors are intensely irritating..
Graduation :: Graduation (n.) The exposure of a liquid in large surfaces to the air, so as to hasten its evaporation..
Bath :: Bath (n.) The act of exposing the body, or part of the body, for purposes of cleanliness, comfort, health, etc., to water, vapor, hot air, or the like; as, a cold or a hot bath; a medicated bath; a steam bath; a hip bath..
Vapor :: Vapor (n.) An old name for hypochondria, or melancholy; the blues..
Exosmose :: Exosmose (n.) The passage of gases, vapors, or liquids thought membranes or porous media from within outward, in the phenomena of osmose; -- opposed to endosmose. See Osmose..
Meteorize :: Meteorize (v. i.) To ascend in vapors; to take the form of a meteor.
Bay Salt :: Bay salt () Salt which has been obtained from sea water, by evaporation in shallow pits or basins, by the heat of the sun; the large crystalline salt of commerce..
Vaporimeter :: Vaporimeter (n.) An instrument for measuring the volume or the tension of any vapor; specifically, an instrument of this sort used as an alcoholometer in testing spirituous liquors..
Vesicle :: Vesicle (n.) A small cavity, nearly spherical in form, and usually of the size of a pea or smaller, such as are common in some volcanic rocks. They are produced by the liberation of watery vapor in the molten mass..
Humid :: Humid (a.) Containing sensible moisture; damp; moist; as, a humidair or atmosphere; somewhat wet or watery; as, humid earth; consisting of water or vapor..
Avolation :: Avolation (n.) The act of flying; flight; evaporation.
Cloud :: Cloud (n.) A collection of visible vapor, or watery particles, suspended in the upper atmosphere..
Gas :: Gas (n.) An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aeriform state..
Thick :: Thick (superl.) Dense; not thin; inspissated; as, thick vapors. Also used figuratively; as, thick darkness..
Pumice :: Pumice (n.) A very light porous volcanic scoria, usually of a gray color, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone..
Vaporization :: Vaporization (n.) The act or process of vaporizing, or the state of being converted into vapor; the artificial formation of vapor; specifically, the conversion of water into steam, as in a steam boiler..
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