noun🔗ShareアセトンA colourless, volatile, flammable liquid ketone, (CH3)2CO, used as a solvent."She used acetone to remove the stubborn nail polish from her fingernails. "彼女は、落ちにくいマニキュアを指の爪から落とすためにアセトンを使った。compoundsubstancechemistrymaterialsciencetechnicalChat with AIVocabulary GamePractice Reading