a colorless, flammable, volatile liquid, CHCOCH, used in organic synthesis and as a solvent, esp. in making rayon: it is found in small amounts in normal urine but in greater amounts in diabetic urine
Origin of acetoneacet(o)- + -one
A colorless, volatile, extremely flammable liquid ketone, C3H6O, widely used as an organic solvent. It is one of the ketone bodies that accumulate in the blood and urine when fat is being metabolized.