"elasmosaur" meaning in English

{
  "forms": [
    {
      "form": "elasmosaurs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "elasmosaur (plural elasmosaurs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Sauropterygians",
          "orig": "en:Sauropterygians",
          "parents": [
            "Reptiles",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2022 December 6, Rachael Merritt, “Australia's first complete plesiosaur fossil discovered in outback Queensland”, in ABC News:",
          "text": "It is the first time in Australia the head and body of an elasmosaur, a type of plesiosaur, has been found in one piece.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any plesiosaur of the genus Elasmosaurus."
      ],
      "id": "en-elasmosaur-en-noun-tLSa-4Wp",
      "links": [
        [
          "plesiosaur",
          "plesiosaur"
        ],
        [
          "Elasmosaurus",
          "Elasmosaurus#Translingual"
        ]
      ]
    }
  ],
  "word": "elasmosaur"
}

{
  "forms": [
    {
      "form": "elasmosaurs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "elasmosaur (plural elasmosaurs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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        "en:Sauropterygians"
      ],
      "examples": [
        {
          "ref": "2022 December 6, Rachael Merritt, “Australia's first complete plesiosaur fossil discovered in outback Queensland”, in ABC News:",
          "text": "It is the first time in Australia the head and body of an elasmosaur, a type of plesiosaur, has been found in one piece.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any plesiosaur of the genus Elasmosaurus."
      ],
      "links": [
        [
          "plesiosaur",
          "plesiosaur"
        ],
        [
          "Elasmosaurus",
          "Elasmosaurus#Translingual"
        ]
      ]
    }
  ],
  "word": "elasmosaur"
}