"thunder lizard" meaning in English

{
  "forms": [
    {
      "form": "thunder lizards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "thunder lizard (plural thunder lizards)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Sauropods",
          "orig": "en:Sauropods",
          "parents": [
            "Dinosaurs",
            "Reptiles",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
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          "source": "w"
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      ],
      "examples": [
        {
          "ref": "1952, “The Trail of the Thunder Lizard”, in Life, volume 33, number 21, page 67",
          "text": "The footprints have already settled one old argument about the Thunder Lizard's habits. Scientists had once argued that the animal's legs could not have supported its tremendous bulk on land and that it was only capable of swimming.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The apatosaurus or brontosaurus."
      ],
      "id": "en-thunder_lizard-en-noun-rpemvMuY",
      "links": [
        [
          "apatosaurus",
          "apatosaurus"
        ],
        [
          "brontosaurus",
          "brontosaurus"
        ]
      ],
      "raw_glosses": [
        "(informal) The apatosaurus or brontosaurus."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "thunder lizard"
}

{
  "forms": [
    {
      "form": "thunder lizards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "thunder lizard (plural thunder lizards)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "en:Sauropods"
      ],
      "examples": [
        {
          "ref": "1952, “The Trail of the Thunder Lizard”, in Life, volume 33, number 21, page 67",
          "text": "The footprints have already settled one old argument about the Thunder Lizard's habits. Scientists had once argued that the animal's legs could not have supported its tremendous bulk on land and that it was only capable of swimming.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The apatosaurus or brontosaurus."
      ],
      "links": [
        [
          "apatosaurus",
          "apatosaurus"
        ],
        [
          "brontosaurus",
          "brontosaurus"
        ]
      ],
      "raw_glosses": [
        "(informal) The apatosaurus or brontosaurus."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "thunder lizard"
}