sulfonic acid

noun

a strong inorganic acid, HSO₂OH

Similar
sulphonic acid
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Meanings

nounsulfonic acid (countable and uncountable, plural sulfonic acids)

plural sulfonic acids · alternative sulphonic acid

  1. UScountableuncountablechemistrya strong inorganic acid, HSO₂OH
  2. UScountableuncountablechemistrythe univalent functional group -SO₂OH
  3. UScountableuncountablechemistryany member of the class or organic acids containing this group; used in detergents, dyes and ion exchange resins

Synonyms & antonyms

nounan acid derived from sulphuric acid

Similar
sulphonic acid
Broader
acid

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

sulfonic acid. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sulfonic%20acid

MLA

“sulfonic acid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sulfonic%20acid. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “sulfonic acid,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sulfonic%20acid.

Source: sulfonic acid on Wiktionary, CC BY-SA 4.0.