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propionic acid

noun, Chemistry, Pharmacology
1.
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.
Origin
1850-1855
1850-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for prop ionic acid

propionic acid

/ˌprəʊpɪˈɒnɪk/
noun
1.
the former name for propanoic acid
Word Origin
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
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prop ionic acid in Medicine

propionic acid pro·pi·on·ic acid (prō'pē-ŏn'ĭk)
n.
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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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prop ionic acid in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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