Standard Lemma guide

cephalosporin

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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /kɛfələʊˈspɔəɹɪn/
  • CMU ARPABET: S EH2 F AH0 L AO1 S P AO2 R IH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any of a class of natural and synthetic antibiotics developed from Acremonium fungi, having a cepham structure.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Mefoxin

Antonyms: none provided

Broader terms: antibiotic, antibiotic drug

Narrower terms: cefadroxil, Ultracef, cefoperazone, Cefobid, cefotaxime, Claforan, ceftazidime, Fortaz, Tazicef, ceftriaxone, Rocephin, cefuroxime, Ceftin, Zinacef, cephalexin, Keflex, Keflin, Keftab, cephalothin

History

Etymology

Etymology tree Translingual Cephalosporium Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ineclip. English -in English cephalosporin From translingual Cephalosporium (now Acremonium), a genus of fungi, + -in.

Across languages

Translations

11 source translations are retained for this English entry.

  • Catalan: cefalosporina — antibiotic derived from Acremonium fungi
  • Chinese Mandarin: 頭孢菌素 /头孢菌素 (tóubāojūnsù) — antibiotic derived from Acremonium fungi
  • Czech: cefalosporin — antibiotic derived from Acremonium fungi
  • French: céphalosporine — antibiotic derived from Acremonium fungi
  • German: Zephalosporin — antibiotic derived from Acremonium fungi
  • Italian: cefalosporina — antibiotic derived from Acremonium fungi
  • Polish: cefalosporyna — antibiotic derived from Acremonium fungi
  • Portuguese: cefalosporina — antibiotic derived from Acremonium fungi
  • Russian: цефалоспори́н (cefalosporín) — antibiotic derived from Acremonium fungi
  • Spanish: cefalosporina — antibiotic derived from Acremonium fungi
  • Ukrainian: цефалоспори́н (cefalosporýn) — antibiotic derived from Acremonium fungi