Standard Lemma guide

dapsone

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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  • Received-Pronunciation: /ˈdap.səʊn/
  • General-American: /ˈdæpˌsoʊn/

1

noun

Meaning 1

A bacteriostatic antimicrobial agent 4-[(4-aminobenzene)sulfonyl]aniline (C12H12N2O2S) used in the treatment of leprosy and a chronic form of dermatitis.

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

antibacterial drug used to treat leprosy and some kinds of skin diseases

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: antibacterial, antibacterial drug, bactericide

History

Etymology

Contraction of diaminophenylsulfone.

Across languages

Translations

1 source translations are retained for this English entry.

  • Bulgarian: дапсон (dapson) — antimicrobial agent used in the treatment of leprosy and dermatitis