from The Century Dictionary.

  • noun A colorless, pulverulent compound, C4H3O2N3, prepared by heating ammonium thionurate.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A complex nitrogenous substance related to urea and uric acid, produced as a white powder; -- so called because it forms yellow salts, and because its solution forms a blue fluorescence like quinine.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun obsolete, organic chemistry A poorly-characterised material, related to urea and uric acid, that forms yellow salts, and exhibits a blue fluorescence


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