azo group

[n] - the bivalent group -N=N- united to two hydrocarbon groups
Found on http://www.webdictionary.co.uk/definition.php?query=azo%20group

azo group

azo radical noun the bivalent group -N=N- united to two hydrocarbon groups
Found on http://wordnetweb.princeton.edu/perl/webwn?s=azo%20group

azo group

the bivalent radical, sbondNdbondNsbond.
Found on http://www.encyclo.co.uk/local/21001
No exact match found