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(), 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. スポンサード リンク
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