hydrase: Meaning and Definition of

hy•drase

Pronunciation: (hī'drās, -drāz), [key]
— n. Biochem.
  1. any of the class of enzymes that catalyze the addition of a water molecule into a compound without causing hydrolysis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.