"libration point" meaning in English

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      "form": "libration points",
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  "lang_code": "en",
  "pos": "noun",
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          "name": "Astrophysics",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Lagrange points",
          "orig": "en:Lagrange points",
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      "glosses": [
        "Synonym of Lagrange point"
      ],
      "id": "en-libration_point-en-noun-I6W9UeSR",
      "links": [
        [
          "astrophysics",
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        [
          "Lagrange point",
          "Lagrange point#English"
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        "(astrophysics) Synonym of Lagrange point"
      ],
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          "word": "Lagrange point"
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      "topics": [
        "astrophysics"
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      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "synonym of Lagrange point",
          "tags": [
            "masculine"
          ],
          "word": "point de libration"
        }
      ]
    }
  ],
  "word": "libration point"
}

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      "tags": [
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          "Lagrange point",
          "Lagrange point#English"
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        "(astrophysics) Synonym of Lagrange point"
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      "synonyms": [
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          "word": "Lagrange point"
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  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "synonym of Lagrange point",
      "tags": [
        "masculine"
      ],
      "word": "point de libration"
    }
  ],
  "word": "libration point"
}