/ Dictionary / Index T triple integral: Meaning and Definition of Find definitions for: tri'ple in'tegral Pronunciation: [key] — Math. Math. an integral in which the integrand involves a function of three variables and which requires three applications of the integration process to evaluate. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triple-header triple jump Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language