nafcillin en · NOUN
Pronunciation
- /næfˈsɪl.ɪn/ (General-American)
Etymology
From naph(thalene) + -cillin (“6-aminopenicillanic acid derivative”).
Meanings
- (uncountable) 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.