methionine

Meanings

Plural: methionines

Noun

• a crystalline amino acid containing sulfur; found in most proteins and essential for nutrition
• A sulphur-containing amino acid, C₅H₁₁NO₂S, in L- and D-forms.
• A sulphur-containing amino acid, C₅H₁₁NO₂S, in L- and D-forms.
• The L-form thereof, a lipotropic molecule widely occurring in living organisms and found in most protein; in humans it is an essential amino acid.