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astigmatism [æs'tigmətizm]    添加到生词本 复制网址
基本释义
  • n. 散光
词形变化
  • 形容词:as'tig·mat'ic
    副 词:as'tig·mat'i·cal·ly
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