Standard Lemma guide

cloxacillin

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American: /ˌklɑk.səˈsɪl.ɪn/
  • rhymes with -ɪlɪn

1

noun

Meaning 1

A semisynthetic antibiotic C19H18ClN3O5S in the same class as penicillin, effective especially against staphylococci which secrete beta-lactamase.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From chl(or)- + oxacillin.