"restringitore" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "restringere",
        "3": "tore"
      },
      "expansion": "restringere + -tore",
      "name": "suffix"
    }
  ],
  "etymology_text": "From restringere + -tore.",
  "forms": [
    {
      "form": "restringitori",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "restringitrice",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "f": "+"
      },
      "expansion": "restringitore m (plural restringitori, feminine restringitrice)",
      "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 -tore",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "constrictor"
      ],
      "id": "en-restringitore-it-noun-jMy3qrC1",
      "links": [
        [
          "constrictor",
          "constrictor"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "restringitore"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "restringere",
        "3": "tore"
      },
      "expansion": "restringere + -tore",
      "name": "suffix"
    }
  ],
  "etymology_text": "From restringere + -tore.",
  "forms": [
    {
      "form": "restringitori",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "restringitrice",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "f": "+"
      },
      "expansion": "restringitore m (plural restringitori, feminine restringitrice)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian nouns with red links in their headword lines",
        "Italian terms suffixed with -tore"
      ],
      "glosses": [
        "constrictor"
      ],
      "links": [
        [
          "constrictor",
          "constrictor"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "restringitore"
}