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[awr-thuh-don-tiks] /ˌɔr θəˈdɒn tɪks/
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
1905-10; orth- + -odont + -ics
Related forms
orthodontic, orthodontal, adjective
orthodontist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for orthodontist
  • Perhaps you can offer to accompany him to the orthodontist and ask some questions.
  • It is appropriate to see a dentist or orthodontist to treat abnormal alignment of the jaw and teeth.
  • Her husband, a successful orthodontist, had left her.
British Dictionary definitions for orthodontist


(functioning as sing) the branch of dentistry concerned with preventing or correcting irregularities of the teeth Also called dental orthopaedics
Derived Forms
orthodontic, adjective
orthodontist, 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
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Word Origin and History for orthodontist

1903; see orthodontia + -ist.



1909, from Modern Latin orthodontia + -ics.

Online Etymology Dictionary, © 2010 Douglas Harper
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orthodontist in Medicine

orthodontist or·tho·don·tist (ôr'thə-dŏn'tĭst)
A person who specializes in orthodontics.

orthodontics or·tho·don·tics (ôr'thə-dŏn'tĭks) or or·tho·don·ture (ôr'thə-dŏn'chər)
The dental specialty and practice of preventing and correcting irregularities of the teeth, as by the use of braces. Also called orthodontia.

or'tho·don'tic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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