Hydroxyl
[hai'drɒksi]
Definition
(noun.) the monovalent group -OH in such compounds as bases and some acids and alcohols.
Inputed by Billy--From WordNet
Definition
(n.) A compound radical, or unsaturated group, HO, consisting of one atom of hydrogen and one of oxygen. It is a characteristic part of the hydrates, the alcohols, the oxygen acids, etc.
Checked by Eugene