/ Dictionary / Index B binomial theorem: Meaning and Definition of Find definitions for: bino'mial the'orem Pronunciation: [key] — Math. Math. the theorem giving the expansion of a binomial raised to any power. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. binomial series binormal Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language