az-

Collins
World English Dictionary
aza- or (before a vowel) az-
 
combining form
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
 
[C20: from az(o)- + -a-]
 
az- or (before a vowel) az-
 
combining form
 
[C20: from az(o)- + -a-]

azo- or (before a vowel) az-
 
combining form
indicating the presence of an azo group: azobenzene
 
[from French azote nitrogen, from Greek azōos lifeless, from a-1 + zōē life]
 
az- or (before a vowel) az-
 
combining form
 
[from French azote nitrogen, from Greek azōos lifeless, from a-1 + zōē life]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
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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