oxacillin

noun

ox·​a·​cil·​lin ˌäk-sə-ˈsi-lən How to pronounce oxacillin (audio)
: a semisynthetic penicillin administered in the form of its hydrated sodium salt C19H18N3NaO5S·H2O to treat infections caused by penicillin-resistant staphylococci

Examples of oxacillin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The superbug is resistant to beta-lactam antibiotics, a broad-spectrum group which includes methicillin as well as oxacillin and the cephalosporins. Ranjit Devraj, Quartz India, 23 July 2019

Word History

Etymology

ox- + azole + penicillin

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of oxacillin was in 1962

Dictionary Entries Near oxacillin

Cite this Entry

“Oxacillin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxacillin. Accessed 26 Dec. 2024.

Medical Definition

oxacillin

noun
ox·​a·​cil·​lin ˌäk-sə-ˈsil-ən How to pronounce oxacillin (audio)
: a semisynthetic penicillin administered in the form of its hydrated sodium salt C19H18N3NaO5S·H2O to treat infections caused by penicillin-resistant staphylococci
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