lecithin

[ les-uh-thin ]

/ ˈlɛs ə θɪn /

noun

Biochemistry. any 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.

Origin of lecithin

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

Words nearby lecithin

lechosos opal, lechuguilla, lechwe, Le Cid, lecithal, lecithin, lecithinase, lecithin-sphingomyelin ratio, lecithoblast, Lecky, Leclair

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for lecithin

Lecithin is also found in the brain and nerve material of animals, in the yolk of egg, and in several plants.
The Bacillus of Long Life|Loudon Douglas
Lecithin is incompatible with alkalies; it should be kept in well-stoppered bottles and should be protected from the light.
The Propaganda for Reform in Proprietary Medicines, Vol. 2 of 2|Various
They have been seriously hampered by the difficulty of securing properly purified extracts of lecithin and similar lipoids.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher
There are many different possible linkages of the constituent groups which make up the lecithin molecule.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher

Lecithin is isolated from animal brain, or egg-yolk, and commercial lecithin is impure.
Epilepsy, Hysteria, and Neurasthenia|Isaac G. Briggs

British Dictionary definitions for lecithin

lecithin

/ (ˈlɛsɪθɪn) /

noun

biochem 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

Word Origin for lecithin

C19: from Greek lekithos egg yolk

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 lecithin

lecithin

[ lĕs′ə-thĭn ]

n.

Any of a group of phospholipids that on hydrolysis yield two fatty acid molecules and a molecule each of glycerophosphoric acid and choline. They are found in nervous tissue, especially myelin sheaths and egg yolk, and in the plasma membrane of plant and animal cells.

Scientific definitions for lecithin

lecithin

[ lĕs′ə-thĭn ]

A fatty substance present in most plant and animal tissues that is an important structural part of cell membranes, particularly in nervous tissue. It consists of a mixture of diglycerides of fatty acids (especially linoleic, palmitic, stearic, and oleic acid) linked to a phosphoric acid ester. Lecithin is used commercially in foods, cosmetics, paints, and plastics for its ability to form emulsions.

单词	lecithin
释义	lecithin [ les-uh-thin ] / ˈlɛs ə θɪn / noun Biochemistry. any 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. Origin of lecithin 1860–65; <Greek lékith(os) egg yolk + -in² Words nearby lecithin lechosos opal, lechuguilla, lechwe, Le Cid, lecithal, lecithin, lecithinase, lecithin-sphingomyelin ratio, lecithoblast, Lecky, Leclair Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for lecithin Lecithin is also found in the brain and nerve material of animals, in the yolk of egg, and in several plants. The Bacillus of Long Life\|Loudon Douglas Lecithin is incompatible with alkalies; it should be kept in well-stoppered bottles and should be protected from the light. The Propaganda for Reform in Proprietary Medicines, Vol. 2 of 2\|Various They have been seriously hampered by the difficulty of securing properly purified extracts of lecithin and similar lipoids. The Chemistry of Plant Life\|Roscoe Wilfred Thatcher There are many different possible linkages of the constituent groups which make up the lecithin molecule. The Chemistry of Plant Life\|Roscoe Wilfred Thatcher Lecithin is isolated from animal brain, or egg-yolk, and commercial lecithin is impure. Epilepsy, Hysteria, and Neurasthenia\|Isaac G. Briggs British Dictionary definitions for lecithin lecithin / (ˈlɛsɪθɪn) / noun biochem 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 Word Origin for lecithin C19: from Greek lekithos egg yolk 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 lecithin lecithin [ lĕs′ə-thĭn ] n. Any of a group of phospholipids that on hydrolysis yield two fatty acid molecules and a molecule each of glycerophosphoric acid and choline. They are found in nervous tissue, especially myelin sheaths and egg yolk, and in the plasma membrane of plant and animal cells. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for lecithin lecithin [ lĕs′ə-thĭn ] A fatty substance present in most plant and animal tissues that is an important structural part of cell membranes, particularly in nervous tissue. It consists of a mixture of diglycerides of fatty acids (especially linoleic, palmitic, stearic, and oleic acid) linked to a phosphoric acid ester. Lecithin is used commercially in foods, cosmetics, paints, and plastics for its ability to form emulsions. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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