lecithin

noun lec·i·thin \ ˈle-sə-thən \

Definition of lecithin

: any of several waxy hygroscopic phospholipids that are widely distributed in animals and plants, form colloidal solutions in water, and have emulsifying, wetting, and antioxidant properties; also : a mixture of or substance rich in lecithins

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Origin and Etymology of lecithin

International Scientific Vocabulary, from Greek lekithos yolk of an egg


Medical Dictionary

lecithin

noun lec·i·thin \ ˈles-ə-thən \

medical Definition of lecithin

: any of several waxy hygroscopic phospholipids in which phosphatidic acid has formed an ester with choline and which are widely distributed in animals and plants, form colloidal solutions in water, and have emulsifying, wetting, and antioxidant properties; also : a mixture of or a substance rich in lecithins called also phosphatidylcholine

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