beta-lactam antibiotic

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Related to Betalactam antibiotic: Imipenem, macrolide antibiotic, cephalosporin antibiotic

beta-lactam antibiotic

n.
Any of a class of broad-spectrum antibiotics, such as the penicillins and the cephalosporins, that contain a beta-lactam ring.
References in periodicals archive ?
Both nafcillin and cefazolin are considered first-line options for for therapy for most MSSA infections, and recent studies suggest that the two betalactam antibiotics have similar efficacy, Dr.