File:Tetrapeptide structural formulae v.1.png|thumb|300px|A tetrapeptide (example Val-Gly-Ser-Ala) with green marked amino end (L-Valine) and blue marked carboxyl end (L-Alanine). A tetrapeptide is a peptide, classified as a oligopeptide, since it only consists of four amino acids joined by peptide bonds. Many tetrapeptides are pharmacologically a...
A compound of four amino acids in peptide linkage. ... (05 Mar 2000) ... 
(tet″rә-pep´tīd) a peptide that on hydrolysis yields four amino acids.
Type: Term Pronunciation: tet′ră-pep′tīd Definitions: 1. A compound of four amino acids in peptide linkage.
Tetrapeptide: A peptide consisting of four amino acids.