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thiazine

[thahy-uh-zeen, -zin]
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noun Chemistry.
  1. any of a class of compounds containing a ring composed of one atom each of sulfur and nitrogen and four atoms of carbon.

Origin of thiazine

First recorded in 1895–1900; thi- + azine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for thiazine

thiazine

noun
  1. any of a group of organic compounds containing a ring system composed of four carbon atoms, a sulphur atom, and a nitrogen atom
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

thiazine in Medicine

thiazine

(thīə-zēn′)
n.
  1. Any of a class of organic chemical compounds containing a ring composed of one sulfur atom, one nitrogen atom, and four carbon atoms, used in making dyes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.