/ Dictionary / Index O orthogenic: Meaning and Definition of Find definitions for: or•tho•gen•ic Pronunciation: (ôr"thu-jen'ik), [key] — adj. of, concerned with, or providing corrective treatment for mentally retarded or seriously disturbed children: orthogenic class. orthogenetic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. orthogenetic orthognathic surgery 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