Wiktionary
dipeptide
n. (context biochemistry organic chemistry English) An organic compound formed from two amino acids joined by a peptide bond.
Wikipedia
Dipeptide
A dipeptide is a sometimes ambiguous designation of two classes of organic compounds: Its molecules contain either two amino acids joined by a single peptide bond or one amino acid with two peptide bonds.
Usage examples of "dipeptide".
It has become customary to express the size of such small chains by using a Greek number prefix to indicate the number of amino acids in it: a dipeptide ("two-peptide" G) is a combination of two amino acids, a tripeptide ("three-peptide" G) of three, a tetrapepttde {"four-peptide" G) of four, and so on.