thiosulphate

T1H4I1O1S1U1L1P3H4A1T1E1
/θaɪə(ʊ)ˈsʌlfeɪt/

noun

A salt of thiosulphuric acid.

OriginEnglish sulphate ← Ancient Greek θεῖον (theîon) ← Proto-Indo-European *dʰewh₂-der.? →
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Meanings

nounthiosulphate (plural thiosulphates)

plural thiosulphates · alternative thiosulfate

  1. A salt of thiosulphuric acid.

    Gold sulphide is insoluble, but gold thiosulphate, compounded of gold, sulphur, and oxygen, dissolves readily enough.

    2002, Philip Ball, The Elements: A Very Short Introduction, Oxford, published 2004, page 46

Origin

  1. Proto-Indo-European*dʰewh₂-der.?
  2. Ancient Greekθέειον (théeion)
  3. Ancient Greekθεῖον (theîon)
  4. Englishthio-
  5. Englishsulphate
  6. Englishthiosulphate

From thio- + sulphate.

Full word history & related roots →
Cite this entry
APA

thiosulphate. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thiosulphate

MLA

“thiosulphate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thiosulphate. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thiosulphate,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thiosulphate.

Source: thiosulphate on Wiktionary, CC BY-SA 4.0.