- either of two isomeric acids having the formula C4H8O2, especially a rancid liquid occurring chiefly in spoiled butter, whose esters are used as flavorings.
Origin of butyric acid
First recorded in 1820–30
Also called butanoic acid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a carboxylic acid existing in two isomeric forms, one of which produces the smell in rancid butter. Its esters are used in flavouring. Formula: C 3 (CH 2) 2 COOH
Word Origin for butyric acid
C19 butyric, from Latin būtyrum butter
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
- Either of two colorless isomeric acids occurring in animal milk fats and used in disinfectants, emulsifying agents, and pharmaceuticals.butanoic acid
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.