"gravity brightened" meaning in English

{
  "head_templates": [
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      "args": {
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      },
      "expansion": "gravity brightened (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "gravity-darkened"
        }
      ],
      "glosses": [
        "Of a star, specifically its poles: brighter due to gravity brightening."
      ],
      "id": "en-gravity_brightened-en-adj-PXiPZYQy",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "astronomy",
          "astronomy"
        ],
        [
          "brighter",
          "bright"
        ],
        [
          "gravity brightening",
          "gravity brightening"
        ]
      ],
      "raw_glosses": [
        "(physics, astronomy) Of a star, specifically its poles: brighter due to gravity brightening."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "astronomy",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "gravity brightened"
}

{
  "coordinate_terms": [
    {
      "word": "gravity-darkened"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "gravity brightened (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English uncomparable adjectives",
        "en:Astronomy",
        "en:Physics"
      ],
      "glosses": [
        "Of a star, specifically its poles: brighter due to gravity brightening."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "astronomy",
          "astronomy"
        ],
        [
          "brighter",
          "bright"
        ],
        [
          "gravity brightening",
          "gravity brightening"
        ]
      ],
      "raw_glosses": [
        "(physics, astronomy) Of a star, specifically its poles: brighter due to gravity brightening."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "astronomy",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "gravity brightened"
}