What is the meaning of Acetone?

A colourless, volatile, flammable liquid ketone, (CH3)2CO, used as a solvent.

acetone (a colourless, volatile, flammable liquid ketone, (CH3)2CO, used as a solvent)

acetone (a colourless, volatile, flammable liquid ketone, (CH3)2CO, used as a solvent)

Source: wiktionary.org