beta-lactam

noun
be·​ta-lac·​tam
variants: or β-lactam \ ˌbāt-​ə-​ˈlak-​ˌtam, chiefly British ˌbē-​tə-​ How to pronounce β-lactam (audio) \

Medical Definition of beta-lactam

: any of a large class of natural and semisynthetic antibiotics (as the penicillins and cephalosporins) with a lactam ring

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Cite this Entry

“Beta-lactam.” The Merriam-Webster.com Medical Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/medical/beta-lactam. Accessed 11 December 2019.

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heavy with or as if with moisture

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