Skip to Content
Medical Term:


Pronunciation: for'ma-zan

Definition: A water-insoluble colored compound of the general structure, RNH—N=CR'—N=NR?, formed by reduction of a tetrazolium salt in the histochemical demonstration of oxidative enzymes; the R's are usually phenyl groups; examples include neotetrazolium, blue tetrazolium, and nitro blue tetrazolium.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.