[ as-i-tohn ]
/ ˈæs ɪˌtoʊn /

noun Chemistry.

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.
Also called dimethylketone.

Origin of acetone

First recorded in 1830–40; acet- + -one


ac·e·ton·ic [as-i-ton-ik], /ˌæs ɪˈtɒn ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for acetone

British Dictionary definitions for acetone

/ (ˈæsɪˌtəʊn) /


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

Derived forms of acetone

acetonic (ˌæsɪˈtɒnɪk), adjective

Word Origin for acetone

C19: from German Azeton, from aceto- + -one
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for acetone

[ ăsĭ-tōn′ ]


A colorless, volatile, extremely flammable liquid ketone widely used as an organic solvent.
An organic compound produced in excessive amounts in diabetic acidosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for acetone

[ ăsĭ-tōn′ ]

A colorless, volatile, extremely flammable liquid ketone that is widely used as a solvent, for example in nail-polish remover. Chemical formula: C3H6O.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.