"Plücker relation" meaning in English

{
  "etymology_text": "Named after the German mathematician Julius Plücker.",
  "forms": [
    {
      "form": "Plücker relations",
      "tags": [
        "plural"
      ]
    }
  ],
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      "args": {},
      "expansion": "Plücker relation (plural Plücker relations)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
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      ],
      "glosses": [
        "Any of a group of simple quadratic relations that are satisfied by the Plücker embedding."
      ],
      "id": "en-Plücker_relation-en-noun-KlLOEetg",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "quadratic",
          "quadratic"
        ],
        [
          "relation",
          "relation"
        ],
        [
          "satisfied",
          "satisfy"
        ],
        [
          "Plücker embedding",
          "Plücker embedding"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Any of a group of simple quadratic relations that are satisfied by the Plücker embedding."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Julius Plücker",
        "Plücker relations"
      ]
    }
  ],
  "word": "Plücker relation"
}

{
  "etymology_text": "Named after the German mathematician Julius Plücker.",
  "forms": [
    {
      "form": "Plücker relations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Plücker relation (plural Plücker relations)",
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    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English terms spelled with ◌̈",
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      "glosses": [
        "Any of a group of simple quadratic relations that are satisfied by the Plücker embedding."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "quadratic",
          "quadratic"
        ],
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          "relation",
          "relation"
        ],
        [
          "satisfied",
          "satisfy"
        ],
        [
          "Plücker embedding",
          "Plücker embedding"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Any of a group of simple quadratic relations that are satisfied by the Plücker embedding."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Julius Plücker",
        "Plücker relations"
      ]
    }
  ],
  "word": "Plücker relation"
}