"Alexander polynomial" meaning in English

{
  "etymology_text": "Discovered in 1923 by James Waddell Alexander.",
  "forms": [
    {
      "form": "Alexander polynomials",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Alexander polynomial (plural Alexander polynomials)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
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          "kind": "other",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [],
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        }
      ],
      "glosses": [
        "A knot invariant which assigns a polynomial with integer coefficients to each knot type."
      ],
      "id": "en-Alexander_polynomial-en-noun-4hLwY7zH",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "integer",
          "integer"
        ],
        [
          "coefficient",
          "coefficient"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A knot invariant which assigns a polynomial with integer coefficients to each knot type."
      ],
      "related": [
        {
          "word": "Alexander-Conway polynomial"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Alexander polynomial"
}

{
  "etymology_text": "Discovered in 1923 by James Waddell Alexander.",
  "forms": [
    {
      "form": "Alexander polynomials",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Alexander polynomial (plural Alexander polynomials)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Alexander-Conway polynomial"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
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        "Pages with entries",
        "en:Mathematics"
      ],
      "glosses": [
        "A knot invariant which assigns a polynomial with integer coefficients to each knot type."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "integer",
          "integer"
        ],
        [
          "coefficient",
          "coefficient"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A knot invariant which assigns a polynomial with integer coefficients to each knot type."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Alexander polynomial"
}