| n. | 1. | (Chem.) 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. |
| Noun | 1. | acetone - the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics Synonyms: dimethyl ketone, propanone |
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