Standard Lemma guide

sulfadiazine

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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  • /ˌsʌl.fəˈdaɪ.ə.ziːn/

1

noun

Meaning 1

A sulfonamide antibiotic that works by halting the production of folic acid inside the bacterial cell, commonly used to treat meningococcal meningitis, toxoplasmosis, and urinary tract infections.

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

2

noun

Meaning 2

a sulfa drug used in treating meningitis and pneumonia and other infections

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: sulfa drug, sulfa, sulpha, sulfonamide

History

Etymology

Etymology tree English sulfon(ic acid) Egyptian jmnbor. Ancient Greek Ᾰ̓́μμων (Ắmmōn)bor. Latin Ammōn Latin ammoniacusder. English ammonia Proto-Indo-European *dheh1-der. Proto-Italic *-iðos Latin -idusder. English -ide English amide English sulfonamide English sulfa- Proto-Indo-European *dwóh1 Proto-Indo-European *dwi- Proto-Hellenic *dwi- Ancient Greek δῐ- (dĭ-)bor. Latin di-bor. English di- Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ᾰ̓- (ă-) Proto-Indo-European *gweyh3- Proto-Indo-European *-wós Proto-Indo-European *gwih3wós Proto-Indo-European *gwíh3weti Proto-Hellenic *gwyṓw-ō Proto-Hellenic *ďṓwō Ancient Greek ζώω (zṓō) Ancient Greek ζῶ (zô) Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek ζωή (zōḗ) French azotebor. English azote Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English diazine English sulfadiazine From sulfa- (“sulfonamide”) + diazine.

Across languages

Translations

2 source translations are retained for this English entry.

  • Finnish: sulfadiatsiini — Translations
  • French: sulfadiazine — Translations
Real reading context

sulfadiazine in complete knowledge articles