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az-

1.
variant of azo-, especially before a vowel:
azine.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for az-

aza-

combining form
1.
denoting the presence of nitrogen, esp a nitrogen atom in place of a -CH group or an -NH group in place of a -CH2 group azathioprine
Word Origin
C20: from az(o)- + -a-

azo-

combining form
1.
indicating the presence of an azo group azobenzene
Word Origin
from French azote nitrogen, from Greek azōos lifeless, from a-1 + zōē life
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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az- in Science
azo- or az-  
A prefix that means "containing an azo group attached at both ends to other groups," as in the compound azobenzene.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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