Term: nafcillin
IPA: næfˈsɪl.ɪn

==English==
[[File:Nafcillin.svg|thumb|250px|Chemical structure of '''nafcillin''']]
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===Etymology===
From {{af|en|naphthalene|alt1=naph(thalene)|-cillin|t2=6-aminopenicillanic acid derivative}}.

===Pronunciation===
* {{IPA|en|/næfˈsɪl.ɪn/|a=GA}}
* {{rhymes|en|ɪlɪn|s=3}}

===Noun===
{{en-noun|-}}

# {{lb|en|pharmaceutical drug}} A [[semisynthetic]] [[penicillin]] that is [[resistant]] to [[beta-lactamase]] and is used especially in the form of its [[hydrate]]d [[sodium]] salt C<sub>21</s