noun Chemistry.

  1. a colorless, volatile, water-soluble, flammable liquid, C3H6O, usually derived by oxidation of isopropyl alcohol or by bacterial fermentation of carbohydrates: used chiefly in paints and varnishes, as a general solvent, and in organic synthesis.


  1. a colourless volatile flammable pungent liquid, miscible with water, used in the manufacture of chemicals and as a solvent and thinner for paints, varnishes, and lacquers. Formula: CH 3 COCH 3Systematic name: propanone

colorless volatile liquid, 1839, literally “a derivative of acetic acid,” from Latin acetum “vinegar” (see acetic) + Greek-based chemical suffix -one, which owes its use in chemistry to this word.


  1. A colorless, volatile, extremely flammable liquid ketone widely used as an organic solvent.
  2. An organic compound produced in excessive amounts in diabetic acidosis.

  1. A colorless, volatile, extremely flammable liquid ketone that is widely used as a solvent, for example in nail-polish remover. Chemical formula: C3H6O.

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