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[ser-een, -in, seer-] /ˈsɛr in, -ɪn, ˈsɪər-/
noun, Biochemistry.
a crystalline amino acid, HOCH 2 CH(NH 2)COOH, found in many proteins and obtained by the hydrolysis of sericin, the protein constituting silk gum. Symbol: S.
Abbreviation: Ser;
Origin of serine
First recorded in 1875-80; ser(um) + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for serine


/ˈsɛriːn; ˈsɪəriːn; -rɪn/
a sweet-tasting amino acid that is synthesized in the body and is involved in the synthesis of cysteine; 2-amino-3-hydroxypropanoic acid. Formula: CH2(OH)CH(NH2)COOH
Word Origin
C19: from sericin + -ine²
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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Word Origin and History for serine

type of amino acid, 1880, from German serin (1865), from Latin sericum "silk" (see serge), with chemical suffix -ine (2).

Online Etymology Dictionary, © 2010 Douglas Harper
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serine in Medicine

serine ser·ine (sěr'ēn')
Abbr. Ser
An amino acid that is a common constituent of many proteins.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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serine in Science
A nonessential amino acid. Chemical formula: C3H7NO3. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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