Breadcrumb Home > Dictionary > Index O orthodontics: Meaning and Definition of Find definitions for: or•tho•don•tics Pronunciation: (ôr"thu-don'tiks), [key] — n. (used with a sing. v.) the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: orthodontics (Thesaurus) orthodontia orthodonture TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language