"magic number" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de magic (« magique ») et de number (« nombre »)."
  ],
  "forms": [
    {
      "form": "magic numbers",
      "ipas": [
        "\\ˌmædʒ.ɪk ˈnʌm.bɚz\\",
        "\\ˌmædʒ.ɪk ˈnʌm.bəz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "island of stability"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en anglais de la physique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Nombre magique."
      ],
      "id": "fr-magic_number-en-noun-dTEzmBkz",
      "tags": [
        "physical"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en anglais de la chimie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Nombre magique."
      ],
      "id": "fr-magic_number-en-noun-dTEzmBkz1",
      "topics": [
        "chemistry"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en anglais de l’informatique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Nombre magique."
      ],
      "id": "fr-magic_number-en-noun-dTEzmBkz1",
      "topics": [
        "computing"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌmædʒ.ɪk ˈnʌm.bɚ\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌmædʒ.ɪk ˈnʌm.bə\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "word": "magic number"
}

{
  "categories": [
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de magic (« magique ») et de number (« nombre »)."
  ],
  "forms": [
    {
      "form": "magic numbers",
      "ipas": [
        "\\ˌmædʒ.ɪk ˈnʌm.bɚz\\",
        "\\ˌmædʒ.ɪk ˈnʌm.bəz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "island of stability"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en anglais de la physique"
      ],
      "glosses": [
        "Nombre magique."
      ],
      "tags": [
        "physical"
      ]
    },
    {
      "categories": [
        "Lexique en anglais de la chimie"
      ],
      "glosses": [
        "Nombre magique."
      ],
      "topics": [
        "chemistry"
      ]
    },
    {
      "categories": [
        "Lexique en anglais de l’informatique"
      ],
      "glosses": [
        "Nombre magique."
      ],
      "topics": [
        "computing"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌmædʒ.ɪk ˈnʌm.bɚ\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌmædʒ.ɪk ˈnʌm.bə\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "word": "magic number"
}