"negazionismo" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "negazione",
        "3": "ismo"
      },
      "expansion": "negazione + -ismo",
      "name": "suffix"
    }
  ],
  "etymology_text": "From negazione + -ismo.",
  "forms": [
    {
      "form": "negazionismi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "negazionismo m (plural negazionismi)",
      "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 suffixed with -ismo",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "denialism, denial (of the Holocaust or other such events)"
      ],
      "id": "en-negazionismo-it-noun-rLF8JJAJ",
      "links": [
        [
          "denialism",
          "denialism"
        ],
        [
          "denial",
          "denial"
        ]
      ],
      "related": [
        {
          "word": "negazione"
        },
        {
          "word": "negazionista"
        },
        {
          "word": "negazionistico"
        }
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "it:negazionismo"
      ]
    }
  ],
  "word": "negazionismo"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "negazione",
        "3": "ismo"
      },
      "expansion": "negazione + -ismo",
      "name": "suffix"
    }
  ],
  "etymology_text": "From negazione + -ismo.",
  "forms": [
    {
      "form": "negazionismi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "negazionismo m (plural negazionismi)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "related": [
    {
      "word": "negazione"
    },
    {
      "word": "negazionista"
    },
    {
      "word": "negazionistico"
    }
  ],
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian terms suffixed with -ismo"
      ],
      "glosses": [
        "denialism, denial (of the Holocaust or other such events)"
      ],
      "links": [
        [
          "denialism",
          "denialism"
        ],
        [
          "denial",
          "denial"
        ]
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "it:negazionismo"
      ]
    }
  ],
  "word": "negazionismo"
}