peptide antibiotic

peptide antibiotic

antibiotic composed of peptides; the antibacterial action is based on the physical disruption of cell membranes.

pep·tide an·ti·bi·ot·ic

(pep'tīd an'ti-bī-ot'ik) An antibiotic composed of peptides; its antibacterial action is based on the physical disruption of cellular membranes.