from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A colorless, volatile, extremely flammable liquid ketone, CH3COCH3, widely used as an organic solvent.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A colourless, volatile, flammable liquid ketone, (CH3)2CO, used as a solvent.

from the GNU version of the Collaborative International Dictionary of English

  • n. A volatile liquid consisting of three parts of carbon, six of hydrogen, and one of oxygen; pyroacetic spirit, -- obtained by the distillation of certain acetates, or by the destructive distillation of citric acid, starch, sugar, or gum, with quicklime.

from The Century Dictionary and Cyclopedia

  • n. A limpid mobile liquid, (CH3)2CO, with an agreeable odor and burning taste, produced by the destructive distillation of acetates.
  • n. The general name of a class of compounds which may be regarded as consisting of two alcoholic radicals united by the group CO, or as aldehydes in which hydrogen of the group COH has been replaced by an alcoholic radical.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics


See acetic. Compare ketone. (Wiktionary)



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