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[men-thawl, -thol] /ˈmɛn θɔl, -θɒl/
Also called hexahydrothymol, peppermint camphor. Chemistry, Pharmacology. a colorless, crystalline, slightly water-soluble alcohol, C 1 0 H 2 0 O, 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.
a mentholated cigarette.
containing menthol; mentholated.
Origin of menthol
1875-80; < New Latin Menth(a) (see mint1) + -ol1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for menthol


an optically active organic compound found in peppermint oil and used as an antiseptic, in inhalants, and as an analgesic. Formula: C10H20O
Word Origin
C19: from German, from Latin menthamint1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for menthol

white crystalline substance, 1862, from German Menthol, coined 1861 by Alphons Oppenheim from Latin mentha "mint" (see mint (n.1)) + oleum "oil" (see oil (n.)). So called because it was first obtained from oil of peppermint.

Online Etymology Dictionary, © 2010 Douglas Harper
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menthol in Medicine

menthol men·thol (měn'thôl')
A white crystalline organic compound obtained from peppermint oil or synthesized and used as a mild topical anesthetic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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menthol in Science
A white, crystalline compound obtained from peppermint oil. It is used as a flavoring and as a mild anesthetic. Chemical formula: C10H20O.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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