propionic acid

propionic acid

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.
Also called methylacetic acid.


Origin:
1850–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Propionic acid is always a great word to know.
So is conformation. Does it mean:
with all water removed, especially water of crystallization
an atomic spatial arrangement that results from rotation of carbon atoms about single bonds within an organic molecule
Collins
World English Dictionary
propionic acid (ˌprəʊpɪˈɒnɪk)
 
n
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)
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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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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