/ Dictionary / Index S summable: Meaning and Definition of Find definitions for: sum•ma•ble Pronunciation: (sum'u-bul), [key] — adj. Math. capable of being added. (of an infinite series, esp. a divergent one) capable of having a sum assigned to it by a method other than the usual one of taking the limit of successive partial sums. (of a function) possessing a finite Lebesgue integral. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. summa summa cum laude Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language