"megashark" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "shark"
      },
      "expansion": "mega- + shark",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mega- + shark.",
  "forms": [
    {
      "form": "megasharks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megashark (plural megasharks)",
      "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",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with mega-",
          "parents": [],
          "source": "w"
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Sharks",
          "orig": "en:Sharks",
          "parents": [
            "Fish",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015 July 10, “Scientists predict huge sea level rise even if we limit climate change”, in The Guardian:",
          "text": "That was about 3m years ago, when the globe was about 3-5F warmer on average, the Arctic 14.4F warmer, megasharks swam the oceans, and sea levels stood at least 20 ft above their current heights.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A very large shark."
      ],
      "id": "en-megashark-en-noun-fTDXzCyz",
      "links": [
        [
          "shark",
          "shark"
        ]
      ]
    }
  ],
  "word": "megashark"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "shark"
      },
      "expansion": "mega- + shark",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mega- + shark.",
  "forms": [
    {
      "form": "megasharks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megashark (plural megasharks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
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        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Sharks"
      ],
      "examples": [
        {
          "ref": "2015 July 10, “Scientists predict huge sea level rise even if we limit climate change”, in The Guardian:",
          "text": "That was about 3m years ago, when the globe was about 3-5F warmer on average, the Arctic 14.4F warmer, megasharks swam the oceans, and sea levels stood at least 20 ft above their current heights.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A very large shark."
      ],
      "links": [
        [
          "shark",
          "shark"
        ]
      ]
    }
  ],
  "word": "megashark"
}