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[skwey-leen] /ˈskweɪ lin/
noun, Biochemistry.
an oil, C 3 0 H 5 0 , intermediate in the synthesis of cholesterol, obtained for use in manufacturing pharmaceuticals.
Origin of squalene
1925-30; < New Latin Squal(us) name of a genus of sharks (the liver of which yields the oil), Latin: a kind of fish + -ene Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for squalene


(biochem) a terpene first found in the liver of sharks but also present in the livers of most higher animals: an important precursor of cholesterol
Word Origin
C20: from New Latin squalus genus name of the shark
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
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squalene in Science
A colorless, unsaturated hydrocarbon found especially in the liver oil of sharks and in human sebum. It is an intermediate compound in the body's synthesis of cholesterol. Chemical formula: C30H50.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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