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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Ni·gran·i·line n.  Chem. The complex, nitrogenous, organic base and dyestuff called also aniline black.
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From: Webster's Revised Unabridged Dictionary (1913)

 In·du·line n.  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.
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