from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See propionic acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A colourless liquid with a sharp unpleasant odour; produced by the bacterial breakdown of fatty acids and therefore found in sweat and some cheese.
- n. The short chain aliphatic carboxylic acid, CH3CH2COOH, used as a preservative, and in the manufacture of many chemical compounds.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a liquid fatty acid found in milk and sweat and in fuel distillates
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