Definition of amino acid

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< amino-

aminoacidemia >

amino acid

NOUN:

An organic compound containing an amino group (NH₂), a carboxylic acid group (COOH), and any of various side groups, especially any of the 20 compounds that have the basic formula NH₂CHRCOOH, and that link together by peptide bonds to form proteins or that function as chemical messengers and as intermediates in metabolism.

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