thiourea

T1H4I1O1U1R1E1A1
US/θaɪoʊjʊˈɹi.ə/US/-ˈjʊəɹi.ə/

noun

Any of a class of compounds based on NH₂-CS-NH₂, formally derived from urea by replacing the oxygen atom with sulfur, used in photography as a fixing agent, in inorganic synthesis, and in medicine as an antithyroid drug.

Similar
thiocarbamide
OriginEnglish urea ← French urée ← Ancient Greek οὖρον (oûron) →
UncommonScrabble 11
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Meanings

nounthiourea (plural thioureas)

plural thioureas

  1. chemistryAny of a class of compounds based on NH₂-CS-NH₂, formally derived from urea by replacing the oxygen atom with sulfur, used in photography as a fixing agent, in inorganic synthesis, and in medicine as an antithyroid drug.

    Synonyms: thiocarbamide

Synonyms & antonyms

nounAny of a class of compounds based on NH₂-CS-NH₂, formally derived from urea by replacing the oxygen atom with sulfur, used in photography as a fixing agent, in inorganic synthesis, and in medicine as an antithyroid drug.

Similar
thiocarbamide
Also see
sulfourea

Origin

  1. Proto-Indo-European*dʰewh₂-der.?
  2. Ancient Greekθέειον (théeion)
  3. Ancient Greekθεῖον (theîon)
  4. Englishthio-
  5. Proto-Indo-European*h₁wers-
  6. Ancient Greekοὐρέω (ouréō)
  7. Ancient Greekοὖρον (oûron)
  8. Frenchurée
  9. Englishurea
  10. Englishthiourea

From New Latin, 1890–95, thio- + urea.

Full word history & related roots →
Cite this entry
APA

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

MLA

“thiourea.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thiourea. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “thiourea,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/thiourea.

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