'Hydroxyl' definitions:
Definition of 'hydroxyl'
(from WordNet)
noun
The monovalent group -OH in such compounds as bases and some acids and alcohols [syn: hydroxyl, hydroxyl group, hydroxyl radical]
Definition of 'Hydroxyl'
From: GCIDE
- Hydroxyl \Hy*drox"yl\, n. [Hydro-, 2 + oxygen + -yl.] (Chem.) 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. [1913 Webster]