Standard Lemma guide

ceftriaxone

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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  • /ˌsɛftɹaɪˈæksoʊn/

1

noun

Meaning 1

A synthetic cephalosporin antibiotic.

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

a parenteral cephalosporin (trade name Rocephin) used for severe infection of the lungs or throat or ears or urinary tract

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Rocephin

Antonyms: none provided

Broader terms: cephalosporin, Mefoxin

History

Etymology

From cef- (“cefalosporanic acid derivative”) + tria(zine)[Term?] + -one.

Across languages

Translations

6 source translations are retained for this English entry.

  • Czech: ceftriaxon — Translations
  • French: ceftriaxone — Translations
  • Hungarian: ceftriaxon — Translations
  • Italian: ceftriaxone — Translations
  • Russian: цефтриаксон (ceftriakson) — Translations
  • Spanish: ceftriaxona — Translations