/ Dictionary / Index D dehydrator: Meaning and Definition of Find definitions for: de•hy•dra•tor Pronunciation: (dē-hī'drā-tur), [key] — n. a person or thing that dehydrates. a device, apparatus, or appliance that dehydrates food for preservation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dehydration dehydro- Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language