"megacolon" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "mega-",
        "3": "colon"
      },
      "expansion": "mega- + colon",
      "name": "af"
    }
  ],
  "etymology_text": "From mega- + colon.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#"
      },
      "expansion": "megacolon m (invariable)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms prefixed with mega-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "it",
          "name": "Pathology",
          "orig": "it:Pathology",
          "parents": [
            "Medicine",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "megacolon"
      ],
      "id": "en-megacolon-it-noun-sunnvMDq",
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "megacolon",
          "megacolon#English"
        ]
      ],
      "raw_glosses": [
        "(pathology) megacolon"
      ],
      "tags": [
        "invariable",
        "masculine"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ],
      "wikipedia": [
        "it:megacolon"
      ]
    }
  ],
  "word": "megacolon"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "mega-",
        "3": "colon"
      },
      "expansion": "mega- + colon",
      "name": "af"
    }
  ],
  "etymology_text": "From mega- + colon.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#"
      },
      "expansion": "megacolon m (invariable)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian indeclinable nouns",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian terms prefixed with mega-",
        "it:Pathology"
      ],
      "glosses": [
        "megacolon"
      ],
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "megacolon",
          "megacolon#English"
        ]
      ],
      "raw_glosses": [
        "(pathology) megacolon"
      ],
      "tags": [
        "invariable",
        "masculine"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ],
      "wikipedia": [
        "it:megacolon"
      ]
    }
  ],
  "word": "megacolon"
}