lysine: Meaning and Definition of

ly•sine

Pronunciation: (lī'sēn, -sin), [key]
— n. Biochem.
  1. a crystalline, basic, amino acid, HN(CH)CH(NH)COOH, produced chiefly from many proteins by hydrolysis, essential in the nutrition of humans and animals. Abbr.: Lys; Symbol: K
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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