peptide

Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid to the amino group of another.

A class of organic compounds consisting of various numbers of amino acids in which the amine of one is reacted with the carboxylic acid of the next to form an amide bond.

The peptide bond itself.

amide combining the amino group of one amino acid with the carboxyl group of another; usually obtained by partial hydrolysis of protein