noun (used with a singular verb)

the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.

Origin of orthodontics

First recorded in 1905–10; orth- + -odont + -ics
Related formsor·tho·don·tic, or·tho·don·tal, adjectiveor·tho·don·tist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for orthodontist

Contemporary Examples of orthodontist

  • In theory, a married born-again Christian orthodontist who lives in Costa Rica.

    The Daily Beast logo
    Who's the Happiest?

    Anneli Rufus

    August 16, 2010

Historical Examples of orthodontist

  • "Lefty is going to take me to the orthodontist this afternoon," she said.

    The Right Time

    Walter Bupp

British Dictionary definitions for orthodontist


orthodontia (ˌɔːθəʊˈdɒntɪə)


(functioning as singular) the branch of dentistry concerned with preventing or correcting irregularities of the teethAlso called: dental orthopaedics
Derived Formsorthodontic, adjectiveorthodontist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for orthodontist

1903; see orthodontia + -ist.



1909, from Modern Latin orthodontia + -ics.

Online Etymology Dictionary, © 2010 Douglas Harper

orthodontist in Medicine




A person who specializes in orthodontics.




The dental specialty and practice of preventing and correcting irregularities of the teeth, as by the use of braces.orthodontia orthodonture
Related formsor′tho•dontic adj.or′tho•dontist n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.