"eikonals" meaning in English

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          "ref": "2016, A.V. Kisselev, “Approximate formulas for total cross section for moderately small eikonal”, in arXiv:",
          "text": "It is shown that for pure imaginary eikonals the relative error of O(10^(-5)) can be achieved.",
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      "id": "en-eikonals-en-noun--ZEXaFOd",
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          "text": "It is shown that for pure imaginary eikonals the relative error of O(10^(-5)) can be achieved.",
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