ヒドロキシケトンMeanings1nounhydroxy ketone; ketolchemistryA chemical term for a ketone that also has a hydroxyl group. Used in organic chemistry.See also: ケトールヒドロキシケトンは有ゆう機き合ごう成せいで重じゅう要ような中ちゅう間かん体たいです。Hydroxy ketones are important intermediates in organic synthesis.