— acetonic /as'i ton"ik/ , adj.
/as"i tohn'/ , n. Chem.
a colorless, volatile, water-soluble, flammable liquid, C 3 H 6 O, 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. Also called dimethylketone .
[ 1830-40; ACET- + -ONE ]