Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of three isomeric glyceryl esters of butyric acid, naturally present in butter.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The triglyceride of butyric acid; the principal constituent of butterfat

from the GNU version of the Collaborative International Dictionary of English

  • n. A butyrate of glycerin; a fat contained in small quantity in milk, which helps to give to butter its peculiar flavor.

from The Century Dictionary and Cyclopedia

  • n. A triglycerid, C3H5(C4H7O2)3, which is a constant constituent of butter, together with olein, stearin, and other glycerids. It is a neutral yellowish liquid fat, having a sharp, bitter taste.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of three glycerides of butyric acid

Etymologies

French butyrine, from Latin būtȳrum, butter; see butter.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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