• Webster's Revised Unabridged Dictionary
    • n Violantin (Chem) A complex nitrogenous substance, produced as a yellow crystalline substance, and regarded as a complex derivative of barbituric acid.
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Century Dictionary and Cyclopedia
    • n violantin A yellowish-white, granular, pulverulent compound, C4H3-O5N3.C4H3O4N3.4H2O, prepared by mixing solutions of nitroso- and nitrobarbituric acid. It decomposes at 120° C. Also called nitro-sonitrobarbituric acid.
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Webster's Revised Unabridged Dictionary
See Violuric