oxacillin

noun
ox·​a·​cil·​lin | \ ˌäk-sə-ˈsi-lən How to pronounce oxacillin (audio) \

Definition of oxacillin

: 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, "Superbugs have returned to haunt India’s hospitals," 23 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oxacillin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of oxacillin

1962, in the meaning defined above

History and Etymology for oxacillin

ox- + azole + penicillin

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Time Traveler for oxacillin

Time Traveler

The first known use of oxacillin was in 1962

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Cite this Entry

“Oxacillin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxacillin. Accessed 22 Oct. 2020.

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More Definitions for oxacillin

oxacillin

noun
ox·​a·​cil·​lin | \ ˌäk-sə-ˈsil-ən How to pronounce oxacillin (audio) \

Medical Definition of oxacillin

: 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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