"Thunderdome" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "thunder",
        "3": "dome",
        "nocap": "1"
      },
      "expansion": "blend of thunder + dome",
      "name": "blend"
    }
  ],
  "etymology_text": "From blend of thunder + dome.",
  "forms": [
    {
      "form": "Thunderdomes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Thunderdome (plural Thunderdomes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English blends",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A domed arena for steel-cage jousting in the Australian post-apocalyptic film Mad Max Beyond Thunderdome (1985), now used to describe various arenas and events."
      ],
      "id": "en-Thunderdome-en-noun-vNqiSni9"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθʌndɚˌdəʊm/"
    },
    {
      "enpr": "thŭn′dər′dōm",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "Thunderdome"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "thunder",
        "3": "dome",
        "nocap": "1"
      },
      "expansion": "blend of thunder + dome",
      "name": "blend"
    }
  ],
  "etymology_text": "From blend of thunder + dome.",
  "forms": [
    {
      "form": "Thunderdomes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Thunderdome (plural Thunderdomes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English 3-syllable words",
        "English blends",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with IPA pronunciation"
      ],
      "glosses": [
        "A domed arena for steel-cage jousting in the Australian post-apocalyptic film Mad Max Beyond Thunderdome (1985), now used to describe various arenas and events."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθʌndɚˌdəʊm/"
    },
    {
      "enpr": "thŭn′dər′dōm",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "Thunderdome"
}