"API donut" meaning in English

{
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        "2": "API",
        "3": "donut"
      },
      "expansion": "API + donut",
      "name": "compound"
    }
  ],
  "etymology_text": "From API + donut; from American Petroleum Institute, and its shape.",
  "forms": [
    {
      "form": "API donuts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "API donut (plural API donuts)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Automotive",
          "orig": "en:Automotive",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP)."
      ],
      "id": "en-API_donut-en-noun-PbWBhG8r",
      "links": [
        [
          "automotive",
          "automotive"
        ],
        [
          "motor oil",
          "motor oil#English"
        ],
        [
          "weight",
          "weight#English"
        ],
        [
          "viscosity",
          "viscosity#English"
        ]
      ],
      "raw_glosses": [
        "(US, automotive) An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP)."
      ],
      "synonyms": [
        {
          "word": "API Service Symbol"
        },
        {
          "word": "API service symbol"
        }
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "automotive",
        "transport",
        "vehicles"
      ],
      "wikipedia": [
        "en:American Petroleum Institute"
      ]
    }
  ],
  "word": "API donut"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "API",
        "3": "donut"
      },
      "expansion": "API + donut",
      "name": "compound"
    }
  ],
  "etymology_text": "From API + donut; from American Petroleum Institute, and its shape.",
  "forms": [
    {
      "form": "API donuts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "API donut (plural API donuts)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "American English",
        "English compound terms",
        "English countable nouns",
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        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "en:Automotive"
      ],
      "glosses": [
        "An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP)."
      ],
      "links": [
        [
          "automotive",
          "automotive"
        ],
        [
          "motor oil",
          "motor oil#English"
        ],
        [
          "weight",
          "weight#English"
        ],
        [
          "viscosity",
          "viscosity#English"
        ]
      ],
      "raw_glosses": [
        "(US, automotive) An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP)."
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "automotive",
        "transport",
        "vehicles"
      ],
      "wikipedia": [
        "en:American Petroleum Institute"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "API Service Symbol"
    },
    {
      "word": "API service symbol"
    }
  ],
  "word": "API donut"
}