/ Dictionary / Index D dihydrate: Meaning and Definition of Find definitions for: di•hy•drate Pronunciation: (dī-hī'drāt), [key] — n. Chem. a hydrate that contains two molecules of water, as potassium sulfite, KSO&multiplydot;2HO. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dihybrid dihydric Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language