hydroxylase

As a noun hydroxylase

is (enzyme) any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between hydrogenase and hydroxylase

is that hydrogenase is hydrogenase while hydroxylase is (enzyme) any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.

In enzyme terms the difference between hydrolase and hydroxylase

is that hydrolase is an enzyme that catalyzes the hydrolysis of a substrate while hydroxylase is any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.

As a noun hydroxylase

is any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.

As a verb hydroxylate is

to introduce a hydroxyl group into a compound.

As nouns the difference between hydroxylase and tetrahydrobiopterin

is that hydroxylase is (enzyme) any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups while tetrahydrobiopterin is (biochemistry) a naturally-occurring nutrient and essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the biosynthesis of the neurotransmitters serotonin, melatonin, dopamine, norepinephrine, epinephrine, and nitric oxide.