/ Dictionary / Index E equivalve: Meaning and Definition of Find definitions for: e•qui•valve Pronunciation: (ē'kwu-valv"), [key] — adj. (of a bivalve mollusk) having the valves of the shell equal in shape and size. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. equivalent weight equivocal Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language