thiouracil

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌθaɪəʊˈjʊərəsɪl/US:USA pronunciation: respellingUSA pronunciation: respelling(thī′ō yŏŏr′ə sil)


WordReference Random House Unabridged Dictionary of American English © 2026
thi•o•u•ra•cil  (thī′ō yŏŏr′ə sil),USA pronunciation n. [Pharm.]
  1. Drugsa white, slightly water-soluble, bitter, crystalline powder C4H4N2OS, used chiefly in treating hyperthyroidism by reducing the activity of the thyroid gland.
  • thio- + uracil 1940–45

Collins Concise English Dictionary © HarperCollins Publishers::
thiouracil /ˌθaɪəʊˈjʊərəsɪl/ n
  1. a white crystalline water-insoluble substance with an intensely bitter taste, used in medicine to treat hyperthyroidism; 2-thio-4-oxypyrimidine. Formula: C4H4N2OS
Etymology: from thio- + uracil ( uro-1 + ac( etic) + -il -ile)
'thiouracil' also found in these entries (note: many are not synonyms or translations):
goitrogen - propylthiouracil

Forum discussions with the word(s) "thiouracil" in the title:


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