"tetrabasicità" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "tetrabasico",
        "3": "ità"
      },
      "expansion": "tetrabasico + -ità",
      "name": "suffix"
    }
  ],
  "etymology_text": "From tetrabasico + -ità.",
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "#"
      },
      "expansion": "tetrabasicità f (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 suffixed with -ità",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "tetrabasicity"
      ],
      "id": "en-tetrabasicità-it-noun-bzZhDsih",
      "links": [
        [
          "tetrabasicity",
          "tetrabasicity"
        ]
      ],
      "tags": [
        "feminine",
        "invariable"
      ]
    }
  ],
  "word": "tetrabasicità"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "tetrabasico",
        "3": "ità"
      },
      "expansion": "tetrabasico + -ità",
      "name": "suffix"
    }
  ],
  "etymology_text": "From tetrabasico + -ità.",
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "#"
      },
      "expansion": "tetrabasicità f (invariable)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian feminine nouns",
        "Italian indeclinable nouns",
        "Italian lemmas",
        "Italian nouns",
        "Italian terms suffixed with -ità"
      ],
      "glosses": [
        "tetrabasicity"
      ],
      "links": [
        [
          "tetrabasicity",
          "tetrabasicity"
        ]
      ],
      "tags": [
        "feminine",
        "invariable"
      ]
    }
  ],
  "word": "tetrabasicità"
}