\Az"o-\ [See {Azote}.] (Chem.)
A combining form of azote;
(a) Applied loosely to compounds having nitrogen variously
    combined, as in cyanides, nitrates, etc.
(b) Now especially applied to compounds containing a two atom
    nitrogen group uniting two hydrocarbon radicals, as in
    azobenzene, azobenzoic, etc. These compounds furnish many
    artificial dyes. See {Diazo-}.