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  1. anastigmatic

    • IPA[ˌanəˌstiɡˈmadik]

    美式

    • adj.
      (of a lens system) constructed so that the astigmatism of each element is canceled out.
    • 更多解釋
    • IPA[ˌanəstɪɡˈmatɪk]

    英式

    • adj.
      (of a lens system) constructed so that the astigmatism of each element is cancelled out.

    Oxford Dictionary