isopropanolPronunciation: /ˌʌɪsə(ʊ)ˈprəʊpənɒl/Definition of isopropanol noun [mass noun] Chemistry a liquid alcohol, used as a solvent and in the industrial production of acetone. Chemical formula: CH3CHOHCH3 isopropanol in other Oxford dictionaries Definition of isopropanol in the US English dictionary