/ Dictionary / Index E equipollent: Meaning and Definition of Find definitions for: e•qui•pol•lent Pronunciation: (ē"kwu-pol'unt, ek"wu-), [key] — adj. equal in power, effect, etc.; equivalent. (of propositions, propositional forms, etc.) logically equivalent in any of various specified ways. —n. an equivalent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. equipoise equiponderance Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language