hydroxylase: Meaning and Definition of

hy•drox•y•lase

Pronunciation: (hī-drok'su-lās", -lāz"), [key]
— n. Biochem.
  1. any enzyme that catalyzes the introduction of a hydroxyl group into a substance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.