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butyric acid

noun, Chemistry
1.
either of two isomeric acids having the formula C 4 H 8 O 2 , especially a rancid liquid occurring chiefly in spoiled butter, whose esters are used as flavorings.
Also called butanoic acid.
Origin
1820-1830
1820-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for butyric-acid

butyric acid

/bjuːˈtɪrɪk/
noun
1.
a carboxylic acid existing in two isomeric forms, one of which produces the smell in rancid butter. Its esters are used in flavouring. Formula: C3(CH2)2COOH
Word Origin
C19 butyric, from Latin būtyrumbutter
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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butyric-acid in Medicine

butyric acid bu·tyr·ic acid (byōō-tēr'ĭk)
n.
Either of two colorless isomeric acids occurring in animal milk fats and used in disinfectants, emulsifying agents, and pharmaceuticals. Also called butanoic 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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butyric-acid in Science
butyric acid
  (by-tîr'ĭk)   
Either of two colorless fatty acids found in butter and certain plant oils. It has an unpleasant odor and is used in emulsifying agents, disinfectants and drugs. Chemical formula: C4H8O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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