Definitions for lysineˈlaɪ sin, -sɪn
Random House Webster's College Dictionary
ly•sineˈlaɪ sin, -sɪn(n.)
a crystalline, basic, essential amino acid, H2N(CH2)4CH(NH2)COOH, produced chiefly from many proteins by hydrolysis.
Ref: Abbr.: Lys 2; Symbol: K 3 6
Origin of lysine:
1890–95; lys(is)+ -ine2
an essential amino acid found in proteins; occurs especially in gelatin and casein
An essential amino acid CHNO found in most animal proteins; essential for growth especially in children.
U.S. National Library of Medicine
An essential amino acid. It is often added to animal feed.