hydroxylPronunciation: /hʌɪˈdrɒksʌɪl, -sɪl/Definition of hydroxyl noun [as modifier] Chemistry of or denoting the radical OH, present in alcohols and many other organic compounds:a hydroxyl groupOrigin: mid 19th century: from a blend of hydrogen and oxygen, + -ylhydroxyl in other Oxford dictionaries Definition of hydroxyl in the US English dictionary
