Standard Lemma guide

dicloxacillin

noun · 2 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: /daɪˌklɑk.səˈsɪl.ɪn/
  • rhymes with -ɪlɪn

1

noun

Meaning 1

A narrow-spectrum beta-lactam antibiotic of the penicillin class, used in the form of its hydrated sodium salt C19H16Cl2N3NaO5S·H2O especially against beta-lactamase producing staphylococci.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

antibacterial (trade name Dynapen) used to treat staphylococcal infections that are resistant to penicillin

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Dynapen

Antonyms: none provided

Broader terms: antibacterial, antibacterial drug, bactericide

History

Etymology

From dichl(oro) + oxacillin.