noun Chemistry, Pharmacology.
a colorless, oily, water-soluble liquid, C3H6O2, having a pungent odor: used in making bread-mold-inhibiting propionates, in perfumery, and in medicine as a topical fungicide.
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Also propanoic acid.
Origin of propionic acid
First recorded in 1850–55
Also called methylacetic acid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for propionic acid
/ (ˌprəʊpɪˈɒnɪk) /
the former name for propanoic acid
Word Origin for propionic acid
C19: from Greek pro- first + pionic from piōn fat, because it is first in order of the fatty acids
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
Medicine definitions for propionic acid
[ prō′pē-ŏn′ĭk ]
A fatty acid found naturally in sweat and as a product of bacterial fermentation, used as a mold inhibitor in bread.propanoic acid
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for propionic acid
[ prō′pē-ŏn′ĭk ]
A liquid fatty acid found naturally in sweat and milk products and as a product of bacterial fermentation. It is also prepared synthetically from ethanol and carbon monoxide, and is used chiefly in the form of its propionates as a mold inhibitor in bread and as an ingredient in perfume. Chemical formula: C3H6O2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.