/ Dictionary / Index O orth-: Meaning and Definition of Find definitions for: orth- Pronunciation: [key] var. ofbefore a vowel: orthicon. Orth. Pronunciation: [key] Orthodox. orth. Pronunciation: [key] orthopedic orthopedics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ortega y Gasset orthicon Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language