• Webster's Revised Unabridged Dictionary
    • a Violuric (Chem) Of, pertaining to, or designating, a complex nitroso derivative of barbituric acid. It is obtained as a white or yellow crystalline substance, and forms characteristic yellow, blue, and violet salts.
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Century Dictionary and Cyclopedia
    • violuric Noting an acid (nitrosobarbituric acid), a yellowish compound, prepared by the action of potassium nitrite on barbituric acid. It forms lustrous, trimetric crystals.
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Webster's Revised Unabridged Dictionary
Viol,et + barbituric,