choline

[ koh-leen, kol-een ]
/ ˈkoʊ lin, ˈkɒl in /

noun

Biochemistry. a quaternary ammonium cation, C5H14N+O, one of the B-complex vitamins, found in the lecithin of many plants and animals.
choline hydroxide, C5H15NO2, the viscous, strongly alkaline commercial form of this compound, usually synthesized, used as a feed supplement, especially for poultry, and in medicine in certain liver conditions.
choline chloride, C5H14ClNO.

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Origin of choline

First recorded in 1855–60; chol- + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for choline

British Dictionary definitions for choline

choline
/ (ˈkəʊliːn, -ɪn, ˈkɒl-) /

noun

a colourless viscous soluble alkaline substance present in animal tissues, esp as a constituent of lecithin: used as a supplement to the diet of poultry and in medicine for preventing the accumulation of fat in the liver. Formula:[(CH 3) 3 NCH 2 CH 2 OH] + OH

Word Origin for choline

C19: from chole- + -ine ², so called because of its action in the liver
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

Medical definitions for choline

choline
[ kōlēn′ ]

n.

A natural amine often classed in the vitamin B complex and a constituent of many other biologically important molecules, such as acetylcholine and lecithin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for choline

choline
[ kōlēn′ ]

A natural amine often classed in the vitamin B complex. It is incorporated into the structure of many other biologically important molecules, such as acetylcholine and lecithin. Chemical formula: C5H15NO2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.