naf·​cil·​lin naf-ˈsil-ən How to pronounce nafcillin (audio)
: a semisynthetic penicillin that is resistant to beta-lactamase and is used especially in the form of its hydrated sodium salt C21H21N2NaO5S·H2O as an antibiotic

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Cite this Entry

“Nafcillin.” Medical Dictionary, Merriam-Webster, Accessed 12 Jul. 2024.

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