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 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'oxacillin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 28 Mar. 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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