thiourea

[ thahy-oh-yoo-ree-uh, -yoo r-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.

Nearby words

thiosulfuric acid, thiosulphate, thiosulphuric acid, thiothixene, thiouracil, thiourea, thioxanthene, thir, thira, thiram, third

Origin of thiourea

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

Also called thiocarbamide.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for thiourea

thiourea

/ (ˌθaɪəʊˈjʊərɪə) /

noun

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

Science definitions for thiourea

thiourea

[ 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.