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词汇 ortho-
释义

Definition of ortho- in English:

ortho-

combining formˈɔːθəʊ

  • 1Straight; rectangular; upright.

    表示“直的”；“直角的”，“正交的”；“直立的”

    orthodontics
    1. 1.1 Right; correct.
      表示“对的”，“正确的”
      orthoepy

  • 2Chemistry
    Denoting substitution at two adjacent carbon atoms in a benzene ring, e.g. in 1,2 positions.

    〔化〕表示“邻（位）”

    orthodichlorobenzene
    Compare with meta- and para-

  • 3Chemistry
    Denoting a compound from which a meta-compound is formed by dehydration.

    〔化〕表示“正”；“原”

    orthophosphoric acid

Origin

From Greek orthos 'straight, right'.

Definition of ortho- in US English:

ortho-

combining formˈɔrθoʊ

  • 1Straight; rectangular; upright.

    表示“直的”；“直角的”，“正交的”；“直立的”

    orthodontics
    1. 1.1 Right; correct.
      表示“对的”，“正确的”
      orthoepy

  • 2Chemistry
    Denoting substitution at two adjacent carbon atoms in a benzene ring, e.g., in 1, 2 positions.

    〔化〕表示“邻（位）”

    orthodichlorobenzene
    Compare with meta- and para-

  • 3Chemistry
    Denoting a compound from which a meta-compound is formed by dehydration.

    〔化〕表示“正”；“原”

    orthophosphoric acid

Origin

From Greek orthos ‘straight, right’.
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