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[thahy-uh-zohl] /ˈθaɪ əˌzoʊl/
noun, Chemistry.
a colorless, slightly water-miscible liquid, C 3 H 3 NS, having a disagreeable odor.
any of various derivatives of this substance, used as dyes or reagents.
Origin of thiazole
First recorded in 1885-90; thi- + azole Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for thiazole


a colourless liquid with a pungent smell that contains a ring system composed of three carbon atoms, a sulphur atom, and a nitrogen atom. It is used in dyes and fungicides. Formula: C3H3NS
any of a group of compounds derived from this substance that are used in dyes
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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thiazole in Science
  1. Any of a class of organic compounds containing a ring that consists of three carbon atoms, one nitrogen atom, and one sulfur atom. Thiamine, penicillin and its derivatives, various other drugs, and numerous dyes are thiazoles.

  2. A colorless or pale yellow liquid used in making dyes and fungicides. Chemical formula: C3H3NS.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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