"troncal" meaning in Spanish

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "troncalidad"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "tronco",
        "3": "-al"
      },
      "expansion": "tronco + -al",
      "name": "af"
    }
  ],
  "etymology_text": "From tronco + -al.",
  "forms": [
    {
      "form": "troncales",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "troncal m or f (masculine and feminine plural troncales)",
      "name": "es-adj"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "58 42",
          "kind": "other",
          "name": "Spanish terms suffixed with -al",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 September 14, “Una de las familias que pidió clases en castellano no lleva a sus hijos al colegio”, in El País",
          "text": "Esta decisión, que obliga a realizar una materia troncal en castellano, no se hizo pública hasta principios de septiembre.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "core, main"
      ],
      "id": "en-troncal-es-adj-YvWc5HyW",
      "links": [
        [
          "core",
          "core"
        ],
        [
          "main",
          "main"
        ]
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Law",
          "orig": "es:Law",
          "parents": [
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "of the principle of troncalidad"
      ],
      "id": "en-troncal-es-adj-pD6lgYlJ",
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "troncalidad",
          "troncalidad#Spanish"
        ]
      ],
      "raw_glosses": [
        "(law, relational) of the principle of troncalidad"
      ],
      "tags": [
        "feminine",
        "masculine",
        "relational"
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "troncal"
}

{
  "categories": [
    "Spanish adjectives",
    "Spanish entries with incorrect language header",
    "Spanish epicene adjectives",
    "Spanish lemmas",
    "Spanish terms suffixed with -al"
  ],
  "derived": [
    {
      "word": "troncalidad"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "tronco",
        "3": "-al"
      },
      "expansion": "tronco + -al",
      "name": "af"
    }
  ],
  "etymology_text": "From tronco + -al.",
  "forms": [
    {
      "form": "troncales",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "troncal m or f (masculine and feminine plural troncales)",
      "name": "es-adj"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Requests for translations of Spanish quotations",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 September 14, “Una de las familias que pidió clases en castellano no lleva a sus hijos al colegio”, in El País",
          "text": "Esta decisión, que obliga a realizar una materia troncal en castellano, no se hizo pública hasta principios de septiembre.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "core, main"
      ],
      "links": [
        [
          "core",
          "core"
        ],
        [
          "main",
          "main"
        ]
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    },
    {
      "categories": [
        "Spanish relational adjectives",
        "es:Law"
      ],
      "glosses": [
        "of the principle of troncalidad"
      ],
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "troncalidad",
          "troncalidad#Spanish"
        ]
      ],
      "raw_glosses": [
        "(law, relational) of the principle of troncalidad"
      ],
      "tags": [
        "feminine",
        "masculine",
        "relational"
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "troncal"
}