/ Dictionary / Index E equational verb: Meaning and Definition of Find definitions for: equa'tional verb' Pronunciation: [key] copula (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. equational equation movement Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language