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astigmia [æ'stigmjə]    添加到生词本 复制网址
基本释义
  • n. 散光
英英解释

  • 　2个名词解释

    1. (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea
      [同] astigmatism, astigmia
    2. (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
      [同] astigmatism, astigmia
      [反] stigmatism