azo-

azo-

a combining form used in the formation of compound words, especially names of chemical compounds containing nitrogen or the azo group: azobenzene.
Also, especially before a vowel, az-.


Origin:
< Greek ázō(os) without life, equivalent to a- a-6 + zō- zo-

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
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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Etymonline
Word Origin & History

azo-
1879, comb. form denoting the presence of nitrogen, from azote, the old term for "nitrogen," from Gk. a- "not, without" + zoion "a living being;" coined in Fr. by Lavoisier & de Morveau because living things cannot survive in the gas.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

azo- or az-
pref.
Containing a nitrogen group, especially one attached at both ends in a covalent bond to other groups: azole.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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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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