cephamycins

ceph·a·my·cins

(sef'ă-mī'sins), A family of β-lactam antibiotics (similar to penicillin and cephalosporins) produced by various Streptomyces species.

ceph·a·my·cins

(sefă-mīsinz) A family of β-lactam antibiotics (similar to penicillin and cephalosporins) produced by various Streptomyces species.