1. introducing a hydroxyl group (-OH) into a molecule or compound, typically through a chemical reaction
Usage: chemistry; present participle of hydroxylate

Examples

• The enzyme is hydroxylating the substrate to produce a more reactive intermediate.
• Hydroxylating aromatic compounds requires specific catalysts and reaction conditions.
• The process of hydroxylating phenol increases its solubility in water.
• Scientists are hydroxylating the drug molecule to improve its bioavailability.
• The hydroxylating reaction occurs at elevated temperatures in the laboratory.