methionine
me·thi·o·nine
noun \mə-ˈthī-ə-ˌnēn\Definition of METHIONINE
: a crystalline sulfur-containing essential amino acid C5H11NO2S that occurs in the levorotatory form as a constituent of many proteins
Origin of METHIONINE
International Scientific Vocabulary, from methyl + thion- + 2-ine
First Known Use: 1928
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