"内燃機関" meaning in Japanese

{
  "forms": [
    {
      "form": "内燃機関",
      "ruby": [
        [
          "内",
          "ない"
        ],
        [
          "燃",
          "ねん"
        ],
        [
          "機",
          "き"
        ],
        [
          "関",
          "かん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nainen kikan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "nainenkikwan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ないねんきくわん",
      "roman": "nainenkikwan",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ないねん きかん",
        "head": "内燃機関",
        "hhira": "ないねんきくわん"
      },
      "expansion": "内(ない)燃(ねん)機(き)関(かん) • (nainen kikan) ^(←ないねんきくわん (nainenkikwan)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with Nakadaka pitch accent (Tōkyō)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "internal combustion engine"
      ],
      "id": "en-内燃機関-ja-noun-zRhJImMw",
      "links": [
        [
          "internal combustion",
          "internal combustion"
        ],
        [
          "engine",
          "engine"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "ないねんきかん"
    },
    {
      "other": "ないねんきかん"
    },
    {
      "ipa": "[na̠ine̞ŋʲ kʲikã̠ɴ]"
    }
  ],
  "word": "内燃機関"
}

{
  "forms": [
    {
      "form": "内燃機関",
      "ruby": [
        [
          "内",
          "ない"
        ],
        [
          "燃",
          "ねん"
        ],
        [
          "機",
          "き"
        ],
        [
          "関",
          "かん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nainen kikan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "nainenkikwan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ないねんきくわん",
      "roman": "nainenkikwan",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ないねん きかん",
        "head": "内燃機関",
        "hhira": "ないねんきくわん"
      },
      "expansion": "内(ない)燃(ねん)機(き)関(かん) • (nainen kikan) ^(←ないねんきくわん (nainenkikwan)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms historically spelled with わ",
        "Japanese terms spelled with fifth grade kanji",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with Nakadaka pitch accent (Tōkyō)",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "internal combustion engine"
      ],
      "links": [
        [
          "internal combustion",
          "internal combustion"
        ],
        [
          "engine",
          "engine"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "ないねんきかん"
    },
    {
      "other": "ないねんきかん"
    },
    {
      "ipa": "[na̠ine̞ŋʲ kʲikã̠ɴ]"
    }
  ],
  "word": "内燃機関"
}