LECITHIN
\lˈɛsɪθˌɪn], \lˈɛsɪθˌɪn], \l_ˈɛ_s_ɪ_θ_ˌɪ_n]\
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Derivatives of phosphatidic acids in which the phosphoric acid is bound in ester linkage to a choline moiety. Complete hydrolysis yields 1 mole of glycerol, phosphoric acid and choline and 2 moles of fatty acids.
By DataStellar Co., Ltd
By William R. Warner
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A phosphorized fat of cell-protoplasm.
By Henderson, I. F.; Henderson, W. D.
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Fatty principle, C44H90NPO9, found in animal tissues; also, any principle of the group to which normal lecithin belongs.
By Willam Alexander Newman Dorland
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A term for a class of bodies derived from the tissues of the brain and nerves, from amniotic fluid, from yolk of egg, from bile, from spermatozooids, and from certain vegetable substances. All are derivatives of glycerin, formed by the substitution of the molecules of 2 fatty acid radicles for 2 molecules of hydroxyl, while the third molecule of hydroxyl is replaced by a molecule of neurin in combination with phosphoric acid. Upon boiling in alkalis or baryta water the l's are hydrolyzed to fatty acids, glycerin, phosphoric acid, and cholin. Intermediate products, such as glycerin and phosphoric acid, have also been isolated. [Gr.]
By Smith Ely Jelliffe
Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].