/ Dictionary / Index O oncogenicity: Meaning and Definition of Find definitions for: on•co•ge•nic•i•ty Pronunciation: (ong"ku-ju-nis'i-tē), [key] — n. the capability of inducing tumor formation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oncogenesis oncology Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language