Dictionary![]() ![]() men•tholPronunciation: (men'thôl, -thol), [key] —n. 1. Also called hexahydrothymol, peppermint camphor. Chem., Pharm.a colorless, crystalline, slightly water-soluble alcohol, C10H20O, obtained from peppermint oil or synthesized: used chiefly in perfumes, confections, cigarettes, and liqueurs and in medicine for colds and nasal disorders for its cooling effect on mucous membranes. 2. a mentholated cigarette. —adj. containing menthol; mentholated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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