oxacillin

English

Chemical structure of oxacillin

Etymology

From (is)oxa(zole) +‎ -cillin (“6-aminopenicillanic acid derivative”).

Pronunciation

• (Received Pronunciation) IPA^(key): /ˌɒk.səˈsɪl.ɪn/
• (General American) IPA^(key): /ˌɑk.səˈsɪl.ɪn/
• Rhymes: -ɪlɪn

Noun

oxacillin (countable and uncountable, plural oxacillins)

1. (pharmacology) A narrow-spectrum beta-lactam antibiotic made by chemical modification of penicillin and administered in the form of its hydrated sodium salt C₁₉H₁₈N₃NaO₅S·H₂O to treat infections caused by penicillin-resistant staphylococci.

Derived terms

• cloxacillin
• dicloxacillin

References

• “oxacillin”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “oxacillin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.