"étoile à neutrons" meaning in French

{
  "forms": [
    {
      "form": "étoiles à neutrons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "étoile à neutrons f (plural étoiles à neutrons)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Astronomy",
          "orig": "fr:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Stars",
          "orig": "fr:Stars",
          "parents": [
            "Celestial bodies",
            "Space",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "neutron star (degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure)"
      ],
      "id": "en-étoile_à_neutrons-fr-noun-h7-xzqQl",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "neutron star",
          "neutron star"
        ]
      ],
      "raw_glosses": [
        "(astronomy) neutron star (degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure)"
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/e.twa.l‿a nø.tʁɔ̃/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-étoile à neutrons.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/09/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/09/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav.ogg"
    }
  ],
  "word": "étoile à neutrons"
}

{
  "forms": [
    {
      "form": "étoiles à neutrons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "étoile à neutrons f (plural étoiles à neutrons)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with entries",
        "fr:Astronomy",
        "fr:Stars"
      ],
      "glosses": [
        "neutron star (degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure)"
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "neutron star",
          "neutron star"
        ]
      ],
      "raw_glosses": [
        "(astronomy) neutron star (degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure)"
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/e.twa.l‿a nø.tʁɔ̃/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-étoile à neutrons.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/09/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/09/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav/LL-Q150_%28fra%29-LoquaxFR-%C3%A9toile_%C3%A0_neutrons.wav.ogg"
    }
  ],
  "word": "étoile à neutrons"
}