cephamycin

noun
ceph·​a·​my·​cin | \ ˌsef-ə-ˈmīs-ᵊn\

Medical Definition of cephamycin

: any of several beta-lactam antibiotics that are produced by various bacteria of the genus Streptomyces or are made semisynthetically and that closely resemble the cephalosporins in structure and pharmacological properties

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