Answer: peptide

AnswerCrossword Clue
PEPTIDEKind of bond, chemically
PEPTIDEIt has two or more amino acids
PEPTIDEEndorphin, e.g.
PEPTIDEProtein's cousin
peptideA compound consisting of two or more amino acids linked in a chain, the carboxyl group of each acid being joined to the amino group of the next by a bond of the type ?OC?NH?
peptidea combination of amino acids, also PEPTID