"tratadística" meaning in Spanish

{
  "forms": [
    {
      "form": "tratadísticas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "tratadística f (plural tratadísticas)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "tra‧ta‧dís‧ti‧ca"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "set of treaties"
      ],
      "id": "en-tratadística-es-noun-PZx-EHD4",
      "links": [
        [
          "treaties",
          "treaty"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɾataˈdistika/"
    },
    {
      "ipa": "[t̪ɾa.t̪aˈð̞is.t̪i.ka]"
    },
    {
      "rhymes": "-istika"
    }
  ],
  "word": "tratadística"
}

{
  "forms": [
    {
      "form": "tratadísticas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "tratadística f (plural tratadísticas)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "tra‧ta‧dís‧ti‧ca"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:Spanish/istika",
        "Rhymes:Spanish/istika/5 syllables",
        "Spanish 5-syllable words",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish nouns",
        "Spanish terms with IPA pronunciation"
      ],
      "glosses": [
        "set of treaties"
      ],
      "links": [
        [
          "treaties",
          "treaty"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɾataˈdistika/"
    },
    {
      "ipa": "[t̪ɾa.t̪aˈð̞is.t̪i.ka]"
    },
    {
      "rhymes": "-istika"
    }
  ],
  "word": "tratadística"
}