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[as-i-tohn] /ˈæs ɪˌtoʊn/
noun, Chemistry
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.
Origin of acetone
1830-40; acet- + -one
Related forms
[as-i-ton-ik] /ˌæs ɪˈtɒn ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for acetone
  • Clean residue before it cures, with alcohol or acetone.
  • And then it was lights out, the sharp smell of acetone lingering in the darkness.
  • Conservators cleaned it with a solution of water and acetone, removing contaminants and reducing acidity in the fabric.
  • Ammonia may be a sign of renal failure and elevated acetone levels can indicate diabetes.
  • First, they used acetone made from deuterium, which is hydrogen with an extra neutron.
  • To do this, she slides the filter into a tube with acetone and leaves them in a refrigerator for a day.
  • Evidence shows, for example, high levels of acetone in diabetics.
  • Their decisions will be longer lasting than any tax codes a president may change, which are more volatile than acetone.
  • acetone is a colorless, highly volatile, flammable liquid with an aromatic odor.
  • He took me to the back room, where the pads are glued together and the molds are washed in acetone.
British Dictionary definitions for acetone


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: CH3COCH3 Systematic name propanone
Derived Forms
acetonic (ˌæsɪˈtɒnɪk) adjective
Word Origin
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
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Word Origin and History for acetone

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.

Online Etymology Dictionary, © 2010 Douglas Harper
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acetone in Medicine

acetone ac·e·tone (ās'ĭ-tōn')

  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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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acetone in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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