"aetosaur" meaning in English

{
  "forms": [
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      "form": "aetosaurs",
      "tags": [
        "plural"
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      "expansion": "aetosaur (plural aetosaurs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "langcode": "en",
          "name": "Paleontology",
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            "Geology",
            "Sciences",
            "Earth sciences",
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        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Reptiles",
          "orig": "en:Reptiles",
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        }
      ],
      "glosses": [
        "Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order †Aetosauria."
      ],
      "id": "en-aetosaur-en-noun-9mJwOSK1",
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "extinct",
          "extinct"
        ],
        [
          "archosaurian",
          "archosaurian"
        ],
        [
          "reptile",
          "reptile"
        ]
      ],
      "raw_glosses": [
        "(paleontology) Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order †Aetosauria."
      ],
      "related": [
        {
          "word": "aetosaurine"
        }
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "any reptile of the order Aetosauria",
          "tags": [
            "masculine"
          ],
          "word": "aetossauro"
        }
      ],
      "wikipedia": [
        "aetosaur"
      ]
    }
  ],
  "word": "aetosaur"
}

{
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      "form": "aetosaurs",
      "tags": [
        "plural"
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      "expansion": "aetosaur (plural aetosaurs)",
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  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "aetosaurine"
    }
  ],
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        "en:Paleontology",
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      "glosses": [
        "Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order †Aetosauria."
      ],
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "extinct",
          "extinct"
        ],
        [
          "archosaurian",
          "archosaurian"
        ],
        [
          "reptile",
          "reptile"
        ]
      ],
      "raw_glosses": [
        "(paleontology) Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order †Aetosauria."
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ],
      "wikipedia": [
        "aetosaur"
      ]
    }
  ],
  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "any reptile of the order Aetosauria",
      "tags": [
        "masculine"
      ],
      "word": "aetossauro"
    }
  ],
  "word": "aetosaur"
}