cho·​line | \ ˈkō-ˌlēn How to pronounce choline (audio) \

Definition of choline

: a basic compound C5H14NO that is found in various foods (such as egg yolks and legumes) or is synthesized in the liver, that is a component of lecithin and a precursor of acetylcholine, and that is essential to the metabolism of fat in the liver and is usually included in the vitamin B complex

Examples of choline in a Sentence

Recent Examples on the Web Kipping says that more than 90 percent of women aren’t meeting their choline needs, and 50 percent are critically deficient in vitamin D. Stefanie Gordon, Woman's Day, 18 July 2022 The men’s formula starts with healthful CBD and adds vitamins A, C, D3, E, and B complex, as well as biotin for skin and hair health, zinc for an immunity boost, choline for metabolic health, and B12 for energy. The Salt Lake Tribune, 18 July 2022 Fish also contains choline, which supports the development of a baby's spinal cord, as well as iron and zinc, which support children's immune systems. Laura Schulte, Journal Sentinel, 18 July 2022 The women’s formula gummies add calcium and zinc to the mix, while the men’s formula gummies include zinc and choline. The Salt Lake Tribune, 17 June 2022 Eggs contain the highest biological value of protein along with disease-fighting nutrients such as vitamin D, choline and lutein. Bethany Thayer, Detroit Free Press, 16 Apr. 2022 Tilapia, which is called for in today's recipe for fish tacos, also provides choline. Bethany Thayer, Detroit Free Press, 19 Mar. 2022 The yolk contains choline, which is essential for brain development and may help with memory. Bethany Thayer, Detroit Free Press, 24 Jan. 2022 Prenatal One vitamin provides probiotics and enzymes, as well as more than 20 essential vitamins and minerals—this one also has choline, as well as calcium. Serena Coady, SELF, 4 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'choline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of choline

circa 1871, in the meaning defined above

History and Etymology for choline

International Scientific Vocabulary

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Time Traveler for choline

Time Traveler

The first known use of choline was circa 1871

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Dictionary Entries Near choline

cholic acid



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Statistics for choline

Last Updated

1 Aug 2022

Cite this Entry

“Choline.” Dictionary, Merriam-Webster, Accessed 17 Aug. 2022.

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More Definitions for choline


cho·​line | \ ˈkō-ˌlēn How to pronounce choline (audio) \

Medical Definition of choline

: a basic compound C5H14NO that is found in various foods (as egg yolk and legumes) or is synthesized in the liver and that is a component of lecithin, is a precursor of acetylcholine, and is essential to liver function

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