/ Dictionary / Index M multiple integral: Meaning and Definition of Find definitions for: mul'tiple in'tegral Pronunciation: [key] an integral in which the integrand involves a function of more than one variable and which requires for evaluation repetition of the integration process. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. multiple independently targetable reentry vehicle multiple listing Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language