/ Dictionary / Index E exponentiation: Meaning and Definition of Find definitions for: ex•po•nen•ti•a•tion Pronunciation: (ek"spō-nen"shē-ā'shun, -spu-), [key] — n. Math. the raising of a number to any given power. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: exponentiation (Thesaurus) exponential horn exponible 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