- containing the azo group.
Origin of azo
First recorded in 1875–80; independent use of 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 of azo-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for azo
They may also be obtained by the oxidation of azo compounds.
The name of Azo is substituted for Nicholas, as more metrical.The Works Of Lord Byron, Vol. 3 (of 7)
According to the brand of azo red which is used, either scarlet or ponceau is obtained.
By mixing the various brands of azo red, a very fine ponceau is produced.
If a very blue tone is desired, add to the bath some solution of coccinine (azo red blue touch).
- of, consisting of, or containing the divalent group -N:N-an azo group or radical See also diazo
independent use of azo-
before a vowel az-
- indicating the presence of an azo groupazobenzene
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
Word Origin and History for azo
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
- Containing two nitrogen atoms joined by a double bond, with each nitrogen atom attached to another group.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.