"Kerr geometry" meaning in English

{
  "etymology_text": "Named after New Zealand physicist Roy Kerr.",
  "forms": [
    {
      "form": "Kerr geometries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "Kerr geometry (usually uncountable, plural Kerr geometries)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Black holes",
          "orig": "en:Black holes",
          "parents": [
            "Astronomy",
            "Astrophysics",
            "Gravity",
            "Relativity",
            "Sciences",
            "Space",
            "Physics",
            "Acceleration",
            "Mechanics",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "March 14, 2018, Roger Penrose, “'Mind over matter': Stephen Hawking – obituary”, in The Guardian",
          "text": "The very remarkable conclusion of all this is that the black holes that we expect to find in nature have to conform to this Kerr geometry.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The geometry of empty spacetime around a rotating uncharged axially-symmetric black hole with a spherical event horizon."
      ],
      "id": "en-Kerr_geometry-en-noun-NVT6cw-9",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "empty",
          "empty"
        ],
        [
          "spacetime",
          "spacetime"
        ],
        [
          "rotating",
          "rotate"
        ],
        [
          "uncharged",
          "uncharged"
        ],
        [
          "axial",
          "axial"
        ],
        [
          "symmetric",
          "symmetric"
        ],
        [
          "black hole",
          "black hole"
        ],
        [
          "spherical",
          "spherical"
        ],
        [
          "event horizon",
          "event horizon"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "Kerr geometry"
}

{
  "etymology_text": "Named after New Zealand physicist Roy Kerr.",
  "forms": [
    {
      "form": "Kerr geometries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
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      },
      "expansion": "Kerr geometry (usually uncountable, plural Kerr geometries)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Black holes"
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      "examples": [
        {
          "ref": "March 14, 2018, Roger Penrose, “'Mind over matter': Stephen Hawking – obituary”, in The Guardian",
          "text": "The very remarkable conclusion of all this is that the black holes that we expect to find in nature have to conform to this Kerr geometry.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The geometry of empty spacetime around a rotating uncharged axially-symmetric black hole with a spherical event horizon."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "empty",
          "empty"
        ],
        [
          "spacetime",
          "spacetime"
        ],
        [
          "rotating",
          "rotate"
        ],
        [
          "uncharged",
          "uncharged"
        ],
        [
          "axial",
          "axial"
        ],
        [
          "symmetric",
          "symmetric"
        ],
        [
          "black hole",
          "black hole"
        ],
        [
          "spherical",
          "spherical"
        ],
        [
          "event horizon",
          "event horizon"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "Kerr geometry"
}