/ Dictionary / Index S surjective: Meaning and Definition of Find definitions for: sur•jec•tive Pronunciation: (sur-jek'tiv), [key] — adj. Math. onto (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. surjection surly Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language