"grau API" meaning in Portuguese

{
  "forms": [
    {
      "form": "graus APIs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "grau API m (plural graus APIs)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pt",
          "name": "Oil industry",
          "orig": "pt:Oil industry",
          "parents": [
            "Industries",
            "Petroleum",
            "Business",
            "Fossil fuels",
            "Liquids",
            "Economics",
            "Society",
            "Carbon",
            "Energy",
            "Natural resources",
            "Matter",
            "Social sciences",
            "All topics",
            "Carbon group elements",
            "Nature",
            "Chemistry",
            "Sciences",
            "Fundamental",
            "Chemical elements"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "API gravity (density of petroleum liquid relative to water)"
      ],
      "id": "en-grau_API-pt-noun-5UuiLwo5",
      "links": [
        [
          "API gravity",
          "API gravity"
        ]
      ],
      "qualifier": "oil industry",
      "raw_glosses": [
        "(oil industry) API gravity (density of petroleum liquid relative to water)"
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "grau API"
}

{
  "forms": [
    {
      "form": "graus APIs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "grau API m (plural graus APIs)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Portuguese countable nouns",
        "Portuguese entries with incorrect language header",
        "Portuguese lemmas",
        "Portuguese masculine nouns",
        "Portuguese multiword terms",
        "Portuguese nouns",
        "Portuguese nouns with red links in their headword lines",
        "pt:Oil industry"
      ],
      "glosses": [
        "API gravity (density of petroleum liquid relative to water)"
      ],
      "links": [
        [
          "API gravity",
          "API gravity"
        ]
      ],
      "qualifier": "oil industry",
      "raw_glosses": [
        "(oil industry) API gravity (density of petroleum liquid relative to water)"
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "grau API"
}