propionic acid

noun Chemistry, Pharmacology.
a colorless, oily, water-soluble liquid, C 3 H 6 O 2 , having a pungent odor: used in making bread-mold-inhibiting propionates, in perfumery, and in medicine as a topical fungicide.
Also called methylacetic acid.

1850–55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
propionic acid (ˌprəʊpɪˈɒnɪk)
the former name for propanoic 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 10th Edition
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American Heritage
Medical Dictionary

propionic acid pro·pi·on·ic 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. Also called propanoic acid.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
propionic acid   (prō'pē-ŏn'ĭk)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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