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lecithin

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈlɛsɪθɪn/US:USA pronunciation: respellingUSA pronunciation: respelling(les′ə thin)

lec•i•thin (les′ə thin),USA pronunciation n.

Biochemistryany of a group of phospholipids, occurring in animal and plant tissues and egg yolk, composed of units of choline, phosphoric acid, fatty acids, and glycerol.
a commercial form of this substance, obtained chiefly from soybeans, corn, and egg yolk, used in foods, cosmetics, and inks.

Greek lékith(os) egg yolk + -in²
1860–65

Collins Concise English Dictionary © HarperCollins Publishers::

lecithin /ˈlɛsɪθɪn/ n

any of a group of phospholipids that are found in many plant and animal tissues, esp egg yolk: used in making candles, cosmetics, and inks, and as an emulsifier and stabilizer in foods (E322)Systematic name: phosphatidylcholine

Etymology: 19th Century: from Greek lekithos egg yolk

'lecithin' also found in these entries (note: many are not synonyms or translations):

choline - emulsifier - phosphatidylcholine - lipoid - phospholipid

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lecithin