"Stirling's approximation" meaning in All languages combined

{
  "etymology_text": "Named after James Stirling, though first stated by Abraham de Moivre.",
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      "args": {},
      "expansion": "Stirling's approximation",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
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      ],
      "glosses": [
        "An accurate approximation for factorials."
      ],
      "id": "en-Stirling's_approximation-en-name-CnX1PAYs",
      "links": [
        [
          "mathematics",
          "mathematics"
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        [
          "accurate",
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        ],
        [
          "factorial",
          "factorial"
        ]
      ],
      "raw_glosses": [
        "(mathematics) An accurate approximation for factorials."
      ],
      "synonyms": [
        {
          "word": "Stirling's formula"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Stirling's approximation"
      ]
    }
  ],
  "word": "Stirling's approximation"
}

{
  "etymology_text": "Named after James Stirling, though first stated by Abraham de Moivre.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Stirling's approximation",
      "name": "en-proper noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
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        "Pages with entries",
        "en:Mathematics"
      ],
      "glosses": [
        "An accurate approximation for factorials."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "accurate",
          "accurate"
        ],
        [
          "factorial",
          "factorial"
        ]
      ],
      "raw_glosses": [
        "(mathematics) An accurate approximation for factorials."
      ],
      "synonyms": [
        {
          "word": "Stirling's formula"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Stirling's approximation"
      ]
    }
  ],
  "word": "Stirling's approximation"
}