/ Dictionary / Index O overpotential: Meaning and Definition of Find definitions for: o•ver•po•ten•tial Pronunciation: (ō'vur-pu-ten"shul), [key] — n. Elect. overvoltage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. overpopulate overpower Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language