Definify.com

Webster 1913 Edition

Noun.

[

Isat

in +

-gen

(Chem.)

A complex nitrogenous radical,

C8H4NO2

, regarded as the essential residue of a series of compounds, related to isatin, which easily pass by reduction to indigo blue.

–

I-satˊo-gen′ic

(#)

Adj.

isatogen ‎(plural isatogens)