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单词 thiourea
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WordReference Random House Unabridged Dictionary of American English © 2024
thi•o•u•re•a  (thī′ō yŏŏ rē′ə, -yŏŏr′ē ə),USA pronunciation n. [Chem.]
  1. Chemistrya colorless, crystalline, bitter-tasting, water-soluble solid, CH4N2S, derived from urea by replacement of the oxygen with sulfur: used chiefly in photography, inorganic synthesis, and to accelerate the vulcanization of rubber. Also called thiocarbamide. 
  • Neo-Latin; see thio-, urea
  • 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
thiourea /ˌθaɪəʊˈjʊərɪə/ n
  1. a white water-soluble crystalline substance with a bitter taste that forms addition compounds with metal ions and is used in photographic fixing, rubber vulcanization, and the manufacture of synthetic resins. Formula: H2NCSNH2
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更新时间：2025/7/23 12:29:31