noun
A functional group consisting of an oxygen and hydrogen atom (-OH) found in alcohols and many organic compounds. Synonymous with 水酸基.
See also: 水酸基
エタノールの分子にはヒドロキシル基が含まれている。
The ethanol molecule contains a hydroxyl group.
ヒドロキシル
The hydroxyl group has hydrophilic properties.