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thiourea

[thahy-oh-yoo-ree-uh, -yoo r-ee-uh] /ˌθaɪ oʊ yʊˈri ə, -ˈyʊər i ə/
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.
Also called thiocarbamide.
Origin of thiourea
1890-1895
From New Latin, dating back to 1890-95; See origin at thio-, urea
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for thiourea

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: H2NCSNH2
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
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thiourea in Science
thiourea
  (thī'ō-y-rē'ə)   
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: CH4N2S.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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