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lysine

[lahy-seen, -sin]

ly·sine

[lahy-seen, -sin]
noun Biochemistry.
a crystalline, basic, amino acid, H2N(CH2)4CH(NH2)COOH, produced chiefly from many proteins by hydrolysis, essential in the nutrition of humans and animals. Abbreviation: Lys; Symbol: K

Origin:
1890–95; lys- + -ine2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Lysine is always a great word to know.
So is tryptophan. Does it mean:
released from proteins by tryptic digestion
white, crystalline, water-soluble obtained by the decomposition of proteins
Collins
World English Dictionary
lysine (ˈlaɪsiːn, -sɪn)
 
n
an essential amino acid that occurs in proteins

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

lysine ly·sine (lī'sēn', -sĭn)
n.
Abbr. Lys
An essential amino acid derived from the hydrolysis of proteins and required by the body for optimum growth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
lysine   (lī'sēn')  Pronunciation Key 
An essential amino acid. Chemical formula: C6H14N2O2. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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