"Alhazen's problem" meaning in English

{
  "etymology_text": "Named for a tenth-century Arab mathematician Ibn al-Haytham, whose latinized name, Alhacen, may be rendered as Alhazen.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        {
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          "langcode": "en",
          "name": "Mathematics",
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      "glosses": [
        "A mathematical problem in which lines drawn from two points in the plane of a circle must meet at a point on the circumference, making equal angles with the normal at that point."
      ],
      "id": "en-Alhazen's_problem-en-name-F4z1edmW",
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          "mathematics",
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          "mathematical",
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      "raw_glosses": [
        "(mathematics) A mathematical problem in which lines drawn from two points in the plane of a circle must meet at a point on the circumference, making equal angles with the normal at that point."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "mathematical problem",
          "tags": [
            "masculine"
          ],
          "word": "problema de Alhazen"
        }
      ],
      "wikipedia": [
        "Alhazen's problem"
      ]
    }
  ],
  "word": "Alhazen's problem"
}

{
  "etymology_text": "Named for a tenth-century Arab mathematician Ibn al-Haytham, whose latinized name, Alhacen, may be rendered as Alhazen.",
  "head_templates": [
    {
      "args": {
        "head": "Alhazen's problem"
      },
      "expansion": "Alhazen's problem",
      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
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        "Terms with Portuguese translations",
        "en:Mathematics"
      ],
      "glosses": [
        "A mathematical problem in which lines drawn from two points in the plane of a circle must meet at a point on the circumference, making equal angles with the normal at that point."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "mathematical",
          "mathematical"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A mathematical problem in which lines drawn from two points in the plane of a circle must meet at a point on the circumference, making equal angles with the normal at that point."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Alhazen's problem"
      ]
    }
  ],
  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "mathematical problem",
      "tags": [
        "masculine"
      ],
      "word": "problema de Alhazen"
    }
  ],
  "word": "Alhazen's problem"
}