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choline

American

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

noun

Biochemistry. a quaternary ammonium cation, C 5 H 14 N + O, one of the B-complex vitamins, found in the lecithin of many plants and animals.
choline hydroxide, C 5 H 15 NO 2 , 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, C 5 H 14 ClNO.

choline British

/ 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 ^–

"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

choline Scientific

/ kō′lēn′ /

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: C ₅ H ₁₅ NO ₂ .

Etymology

Origin of choline

First recorded in 1855–60; chol- + -ine ²

Example Sentences

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See Examples For:

choline

If the brain cannot take in enough to meet that demand, choline levels may drop.

From Science Daily ● May 16, 2026

Maddock had previously seen low choline levels in studies of people with panic disorder.

From Science Daily ● May 16, 2026

People with anxiety disorders may share a measurable change in brain chemistry involving choline, an essential nutrient tied to memory, mood, cell structure, and nerve signaling.

From Science Daily ● May 16, 2026

Research from UC Davis Health found that people diagnosed with anxiety disorders had lower levels of choline in the brain than people without anxiety.

From Science Daily ● May 16, 2026

According to Kobert the substance formed from choline on the decay of the mushrooms containing it is not muscarine, but a very closely related alkaloid, neurin.

From Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. by George Francis Atkinson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023