hī|drazō, |hīdrəzō+ noun
Etymology: International Scientific Vocabulary hydraz- + benzene
: a crystalline compound C 6 H 5 NHNHC 6 H 5 obtained by alkaline reduction of nitrobenzene or azobenzene and capable of being converted into aniline by reduction, into azobenzene by oxidation, and into benzidine by rearrangement in the presence of hydrochloric acid