/ Dictionary / Index M material equivalence: Meaning and Definition of Find definitions for: mate'rial equiv'alence Pronunciation: [key] equivalence (def. 4b). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. material culture material implication Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language