What does "nafcillin" mean?

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.

What is a synonym for "nafcillin"?

Common synonyms include: nafcil.

Nafcillin

//næfˈsɪl.ɪn// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
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. uncountable
2
a penicillinase-resistant form of penicillin (trade name Nafcil) used (usually in the form of its sodium salt) to treat infections caused by penicillin-resistant strains of staphylococci wordnet

Synonyms

All synonyms

nafcil

Etymology

From naph(thalene) + -cillin (“6-aminopenicillanic acid derivative”).

Related phrases

beta lactam

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.