butanone

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A colorless, flammable ketone, C₄H₈O, used in lacquers, paint removers, cements and adhesives, cleaning fluids, and celluloid.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry A simple aliphatic ketone, CH3CH2COCH3, prepared industrially as a solvent, for use in the manufacture of paints etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun colorless soluble flammable liquid ketone used as a solvent for resins and as a paint remover and in lacquers and cements and adhesives and cleaning fluids and celluloid