(organic chemistry) Any organic compound containing both an amino and a carboxylic acid functional group.

plural of amino acid

(biochemistry) Any amino acid that has the amino and carboxylic functional groups attached to adjacent carbon atoms; beta-alanine is the only one that occurs in nature, but not in peptides or proteins.

(biochemistry) Any amino acid that has the amino and carboxylic functional groups attached to the same carbon atom; especially those amino acids that occur naturally as peptides and proteins.

(biochemistry) Those of the naturally occurring amino acids that the human body can synthesize for itself, and so need not be provided by dietary protein.

(biochemistry) One of the nine naturally occurring amino acids that the human body cannot synthesize, and so must be provided by dietary protein.

(chemistry) any glyco-amino-acid

(chemistry) any glycoside of an amino acid (linked via O-, N- or S-)

Abbreviation of beta-amino acid.

plural of nonessential amino acid