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Definition of orthodontics noun from the Oxford Advanced Learner's Dictionary

orthodontics

noun
 
/ˌɔːθəˈdɒntɪks/
 
/ˌɔːrθəˈdɑːntɪks/
[uncountable]
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  1. the treatment of problems relating to the position of the teeth and jaws
    Word Originearly 20th cent.: from ortho- ‘straight’ + Greek odous, odont- ‘tooth’.
See orthodontics in the Oxford Advanced American Dictionary
trait
noun
 
 
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