from The Century Dictionary.

  • noun A colorless compound, , crystallizing in needles which sublime without melting. It is prepared by the interaction of ammonia and glyoxal. Also called diglyoxaline.

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

  • noun (Chem.) An organic base, C6H6N4, produced artificially as a white, crystalline powder, by the action of ammonia on glyoxal.

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

  • noun obsolete, organic chemistry An organic base, C6H6N4, produced by the action of ammonia on glyoxal.
  • noun organic chemistry The organic compound 1-methyl-2-(phenylmethyl)-4(1H)-quinazolinone (a fused derivative of pyrimidine) found in the toothbrush plant, Glycosmis pentaphylla, sometimes used to ease the pain of arthritis


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