Definition of peptide in English:


Syllabification: pep·tide
Pronunciation: /ˈpeptīd


  • A 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.
    More example sentences
    • Among the amino acids of the peptide, the most dramatic change was the Phe residue.
    • If there are only two amino acids then the peptide is a dipeptide.
    • The peptide contains complementary amino acid sequences, with alternating positive and negative charges.


early 20th century: from German Peptid, back-formation from Polypeptid 'polypeptide'.

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