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thiourea

[ thahy-oh-yoo-ree-uh, -yoor-ee-uh ]

noun

, Chemistry.
  1. a colorless, crystalline, bitter-tasting, water-soluble solid, CH 4 N 2 S, derived from urea by replacement of the oxygen with sulfur: used chiefly in photography, inorganic synthesis, and to accelerate the vulcanization of rubber.


thiourea

/ ˌθaɪəʊˈjʊərɪə /

noun

  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: H 2 NCSNH 2
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


thiourea

/ thī′ō-y-rēə /

  1. A lustrous white crystalline compound used as a developer in photography and photocopying and in various organic syntheses. Thiourea has the same structure as urea, but with a sulfur atom in place of the oxygen atom. Chemical formula: CH 4 N 2 S.


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Word History and Origins

Origin of thiourea1

From New Latin, dating back to 1890–95; thio-, urea

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thiouracilthioxanthene