| 单词 | thiourea |
| 释义 | thiourea[ thahy-oh-yoo-ree-uh, -yoor-ee-uh ] / ˌθaɪ oʊ yʊˈri ə, -ˈyʊər i ə / noun Chemistry.a 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. Origin of thioureaFrom New Latin, dating back to 1890–95; see origin at thio-, urea Words nearby thioureathiosulfuric acid, thiosulphate, thiosulphuric acid, thiothixene, thiouracil, thiourea, thioxanthene, thir, thiram, third, Third Age Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for thioureathiourea / (ˌθaɪəʊˈjʊərɪə) / nouna 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 Scientific definitions for thioureathiourea [ thī′ō-yu-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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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