"biprism" meaning in English

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  "etymology_text": "From bi- + prism.",
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      "form": "biprisms",
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      "glosses": [
        "A fusion of two triangular prisms."
      ],
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          "mathematics",
          "mathematics"
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        [
          "fusion",
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          "triangular",
          "triangular"
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          "prism",
          "prism"
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      "raw_glosses": [
        "(mathematics) A fusion of two triangular prisms."
      ],
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        "mathematics",
        "sciences"
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      "glosses": [
        "An optical device of this construction used to generate interference fringes."
      ],
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          "interference fringe",
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        "(physics) An optical device of this construction used to generate interference fringes."
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  ],
  "etymology_text": "From bi- + prism.",
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    {
      "form": "biprisms",
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        "A fusion of two triangular prisms."
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        "(mathematics) A fusion of two triangular prisms."
      ],
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        "mathematics",
        "sciences"
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