单词	thiourea
释义	thiourea noun thio·​urea ˌthī-ō-yu̇-ˈrē-ə  : a colorless crystalline bitter compound CS(NH2)2 analogous to and resembling urea that is used especially as a photographic and organic chemical reagent also : a substituted derivative of this compound Example Sentences Recent Examples on the Web Many plants, including broccoli, evolved to produce bitter-tasting chemicals like thiourea to avoid being eaten. Bill Sullivan, The Conversation, 5 June 2020 One of those genes, TAS2R38, recognizes bitter chemicals like thioureas, which are plentiful in broccoli. Bill Sullivan, National Geographic, 6 Aug. 2019 Word History Etymology New Latin First Known Use 1884, in the meaning defined above Medical Definition thiourea noun thio·​urea -yu̇-ˈrē-ə  : a colorless bitter crystalline compound CS(NH2)2 analogous to and resembling urea that is used especially as a reagent and in medicine as an antithyroid drug called also thiocarbamide
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