from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any metal carbonyl containing two carbonyl groups per molecule
  • n. Two carbonyl groups in a molecule


Sorry, no etymologies found.


  • Ah, but the next in line is a dicarbonyl with two methyl substituants: CH3(C=O)(C=O)CH3.

    Hot Buttered

  • There results, therefore, a dicarbonyl derivative ( 'osone'), which reacts directly with 2 mol. phenyl hydrazine in the cold to form an osazone.

    Researches on Cellulose 1895-1900


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