Definition of "hydroxyl radical" []

• The monovalent group -OH in such compounds as bases and some acids and alcohols (noun)

WordNet. Princeton University. 2010.

• "We concluded, therefore, that the hydroxyl radical in diethanolamine was in some manner and to some degree interfering with the action of the hydroxyl radical in alcohol on specific receptor sites in the brain."
• "Group Two mice were injected with alcohol two hours after the injection of diethanolamine, a drug that we believed might block the hydroxyl radical in alcohol."