/ Dictionary / Index N neogenesis: Meaning and Definition of Find definitions for: ne•o•gen•e•sis Pronunciation: (nē"ō-jen'u-sis), [key] — n. Physiol. the regeneration of tissue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Neogene neoglaciation Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language