/ Dictionary / Index O orthogenetic: Meaning and Definition of Find definitions for: or•tho•ge•net•ic Pronunciation: (ôr"thō-ju-net'ik), [key] — adj. pertaining to or exhibiting orthogenesis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. orthogenesis orthogenic 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