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diazine

[dahy-uh-zeen, -zin, dahy-az-een, -in]
noun Chemistry.
  1. any of three isomeric compounds having the formula C4H4N2, containing a ring of four carbon atoms and two nitrogen atoms.
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Origin of diazine

diaz- + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for diazine

diazine

diazin (ˈdaɪəzɪn, daɪˈæzɪn)

noun
  1. any organic compound whose molecules contain a hexagonal ring of four carbon atoms and two nitrogen atoms, esp any of three isomers with the formula C 4 N 2 H 4See also pyrimidine
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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
diazine in Medicine

diazine

(dī′ə-zēn′, dī-ăz′ĭn)
n.
  1. A compound containing a benzene ring in which two of the carbon atoms have been replaced by nitrogen atoms.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.