Standard Lemma guide

sulfonamide

noun · 3 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.

No pronunciation record was provided for this word.

1

noun

Meaning 1

Any amide of a sulfonic acid RS(=O)2NR'2

Definition source: English Wiktionary via Wiktextract

Usage: IUPAC, US

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any of a group of antibiotics; a sulfa drug

Definition source: English Wiktionary via Wiktextract

Usage: IUPAC, US

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sulfa drug, sulfa, sulpha

Antonyms: none provided

Broader terms: antibacterial, antibacterial drug, bactericide

Narrower terms: sulfacetamide, Sulamyd, sulfadiazine, sulfamethazine, sulfamezathine, sulfamethoxazole, Gantanol, sulfanilamide, sulfapyridine, sulfisoxazole, Gantrisin, Thiosulfil

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 From sulfon(ic acid) + amide.

Across languages

Translations

5 source translations are retained for this English entry.

  • Catalan: sulfonamida — any amide of a sulfonic acid
  • Polish: sulfonamid — any amide of a sulfonic acid
  • Spanish: sulfonamida — any amide of a sulfonic acid
  • Czech: sulfonamid — type of antibiotic, a sulfa drug
  • Polish: sulfonamid — type of antibiotic, a sulfa drug