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    orthodontics

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    orthodontics

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++
    Related topics: Hospital
    or·tho·don·tics /ˌɔːθəˈdɒntɪks $ ˌɔːrθəˈdɑːn-/ noun [uncountable]  MHthe skill or job of helping teeth to grow straight when they have not been growing correctly 口腔正畸(术)n GRAMMAR: Singular or plural verb?Orthodontics is followed by a singular verb: Orthodontics is a good profession. —orthodontic adjective orthodontic treatment 口腔正畸治疗    Origin orthodontics (1900-2000) ortho- “straight” (from Greek; → ORTHODOX) + Greek odous “tooth”
    or·tho·don·tics noun →n GRAMMAR1LDOCE OnlineChineseSyllable


    orthodontics
    or‧tho‧don‧tics /ˌɔːθəˈdɒntɪks $ ˌɔːrθəˈdɑːn-/ noun [uncountable]
     Date: 1900-2000
     Origin: ortho- 'straight' (from Greek; ⇨ orthodox) + Greek odous 'tooth'
    the skill or job of helping teeth to grow straight when they have not been growing correctly
    —orthodontic adjective:
        orthodontic treatment


    ortho·don·ticsBrE /ˌɔːθəˈdɒntɪks/ 🔊NAmE /ˌɔːrθəˈdɑːntɪks/ 🔊 noun [uncountable] the treatment of problems concerning the position of the teeth and jaws 口腔正畸术

    biology, biotechnology, breed, cell, chromosome, DNA, gene, mutation, organism, protein

    ▸ ortho·don·tic BrE /ˌɔːθəˈdɒntɪk/ 🔊NAmE /ˌɔːrθəˈdɑːntɪk/ 🔊 adjective◆orthodontic treatment口腔正畸治疗