methionine

[ me-thahy-uh-neen, -nin ]

/ mɛˈθaɪ əˌnin, -nɪn /

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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

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Origin of methionine

First recorded in 1925–30; blend of methyl and thionine

Words nearby methionine

methenamine, methicillin, methimazole, methinks, methiocarb, methionine, metho, methocarbamol, method, methodical, methodically

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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

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

Scientific definitions for methionine

methionine

[ mə-thī′ə-nēn′ ]

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