Source : Webster's Revised Unabridged Dictionary (1913)

Induline \In"du*line\, n. [Perh. fr. indigo.] (Chem.)
   (a) Any one of a large series of aniline dyes, colored blue
       or violet, and represented by aniline violet.
   (b) A dark green amorphous dyestuff, produced by the
       oxidation of aniline in the presence of copper or
       vanadium salts; -- called also {aniline black}.

Nigraniline \Ni*gran"i*line\ (? or ?), n. [L. niger black + E.
   aniline.] (Chem.)
   The complex, nitrogenous, organic base and dyestuff called
   also {aniline black}.