methionine

[ me-thahy-uh-neen, -nin ]
/ mɛˈθaɪ əˌnin, -nɪn /

noun Biochemistry.

an amino acid, CH3SCH2CH2CH(NH2)COOH, found in casein, wool, and other proteins or prepared synthetically: used as a supplement to a special diet in the prevention and treatment of certain liver diseases. Abbreviation: Met; Symbol: M

Origin of methionine

1925–30; blend of methyl and thionine

British Dictionary definitions for methionine

methionine
/ (mɛˈθaɪəˌniːn, -ˌnaɪn) /

noun

an essential amino acid containing sulphur, which occurs in many proteins: important in methylating reactions

Word Origin for methionine

C20: meth- + thionine

Medical definitions for methionine

methionine
[ mə-thīə-nēn′ ]

n.

A sulfur-containing essential amino acid obtained from various proteins or prepared synthetically and used as a dietary supplement and in pharmaceuticals.

Scientific definitions for methionine

methionine
[ mə-thīə-nēn′ ]

An essential amino acid. Chemical formula: C5H11NO2S. See more at amino acid.