"Thunderdome" meaning in English

{
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        "2": "thunder",
        "3": "dome"
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      "expansion": "thunder + dome",
      "name": "com"
    }
  ],
  "etymology_text": "From thunder + dome.",
  "forms": [
    {
      "form": "Thunderdomes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Thunderdome (plural Thunderdomes)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "other",
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      ],
      "glosses": [
        "A domed arena for steel-cage jousting in the Australian post-apocalyptic film Mad Max Beyond Thunderdome (1985), now used to describe an enclosed arena where fighting events take place and have no rules."
      ],
      "id": "en-Thunderdome-en-noun-sG8-9Brv"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθʌndɚˌdəʊm/"
    },
    {
      "enpr": "thŭn′dər′dōm",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "Thunderdome"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "thunder",
        "3": "dome"
      },
      "expansion": "thunder + dome",
      "name": "com"
    }
  ],
  "etymology_text": "From thunder + dome.",
  "forms": [
    {
      "form": "Thunderdomes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Thunderdome (plural Thunderdomes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A domed arena for steel-cage jousting in the Australian post-apocalyptic film Mad Max Beyond Thunderdome (1985), now used to describe an enclosed arena where fighting events take place and have no rules."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθʌndɚˌdəʊm/"
    },
    {
      "enpr": "thŭn′dər′dōm",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "Thunderdome"
}