/ Dictionary / Index H hydropower: Meaning and Definition of Find definitions for: hy•dro•pow•er Pronunciation: (hī'dru-pou"ur), [key] — n. hydroelectric power. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydroponics hydrops Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language