"superflood" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "super",
        "3": "flood"
      },
      "expansion": "super- + flood",
      "name": "prefix"
    }
  ],
  "etymology_text": "super- + flood",
  "forms": [
    {
      "form": "superfloods",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "superflood (plural superfloods)",
      "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 super-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1935, United States. Congress. Senate. Committee on Flood Control, Flood Control in the Mississippi Valley, page 315",
          "text": "Under this plan, in the event of a superflood, New Orleans will have protection through the Bonnet Carre spillway, carrying a half million second feet of water.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large, devastating flood, especially one caused by the melting of a glacier-dammed lake."
      ],
      "id": "en-superflood-en-noun-VpjT6WcI",
      "links": [
        [
          "flood",
          "flood"
        ]
      ]
    }
  ],
  "word": "superflood"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "super",
        "3": "flood"
      },
      "expansion": "super- + flood",
      "name": "prefix"
    }
  ],
  "etymology_text": "super- + flood",
  "forms": [
    {
      "form": "superfloods",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "superflood (plural superfloods)",
      "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",
        "English terms prefixed with super-",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1935, United States. Congress. Senate. Committee on Flood Control, Flood Control in the Mississippi Valley, page 315",
          "text": "Under this plan, in the event of a superflood, New Orleans will have protection through the Bonnet Carre spillway, carrying a half million second feet of water.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large, devastating flood, especially one caused by the melting of a glacier-dammed lake."
      ],
      "links": [
        [
          "flood",
          "flood"
        ]
      ]
    }
  ],
  "word": "superflood"
}