"grado centígrado" meaning in Spanish

{
  "forms": [
    {
      "form": "grados centígrados",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "grado centígrado m (plural grados centígrados)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "SI units",
          "orig": "es:SI units",
          "parents": [
            "Units of measure",
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "degree Celsius"
      ],
      "id": "en-grado_centígrado-es-noun-asW5oKmo",
      "links": [
        [
          "degree Celsius",
          "degree Celsius"
        ]
      ],
      "raw_glosses": [
        "(colloquial) degree Celsius"
      ],
      "synonyms": [
        {
          "word": "grado Celsius"
        }
      ],
      "tags": [
        "colloquial",
        "masculine"
      ]
    }
  ],
  "word": "grado centígrado"
}

{
  "forms": [
    {
      "form": "grados centígrados",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "grado centígrado m (plural grados centígrados)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Spanish colloquialisms",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish multiword terms",
        "Spanish nouns",
        "es:SI units"
      ],
      "glosses": [
        "degree Celsius"
      ],
      "links": [
        [
          "degree Celsius",
          "degree Celsius"
        ]
      ],
      "raw_glosses": [
        "(colloquial) degree Celsius"
      ],
      "synonyms": [
        {
          "word": "grado Celsius"
        }
      ],
      "tags": [
        "colloquial",
        "masculine"
      ]
    }
  ],
  "word": "grado centígrado"
}