"溶岩円頂丘" meaning in Japanese

{
  "forms": [
    {
      "form": "溶岩円頂丘 ^",
      "ruby": [
        [
          "溶",
          "よう"
        ],
        [
          "岩",
          "がん"
        ],
        [
          "円",
          "えん"
        ],
        [
          "頂",
          "ちょう"
        ],
        [
          "丘",
          "きゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yōgan enchōkyū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "yougan'wentyaukiu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ようがんゑんちやうきう",
      "roman": "yougan'wentyaukiu",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "溶岩圓頂丘",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ようがん えんちょうきゅう",
        "hhira": "ようがんゑんちやうきう"
      },
      "expansion": "溶(よう)岩(がん)円(えん)頂(ちょう)丘(きゅう) • (yōgan enchōkyū) ^(←ようがんゑんちやうきう (yougan'wentyaukiu)?)",
      "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 read with on'yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 5 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 non-redundant non-automated sortkeys",
          "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"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Geology",
          "orig": "ja:Geology",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "lava dome"
      ],
      "id": "en-溶岩円頂丘-ja-noun-W-FLP-Pw",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "lava dome",
          "lava dome"
        ]
      ],
      "raw_glosses": [
        "(geology) lava dome"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "よーがんえんちょーきゅう"
    },
    {
      "ipa": "[jo̞ːɡã̠ɰ̃ẽ̞ɲ̟t͡ɕo̞ːkʲɨː]"
    }
  ],
  "word": "溶岩円頂丘"
}

{
  "forms": [
    {
      "form": "溶岩円頂丘 ^",
      "ruby": [
        [
          "溶",
          "よう"
        ],
        [
          "岩",
          "がん"
        ],
        [
          "円",
          "えん"
        ],
        [
          "頂",
          "ちょう"
        ],
        [
          "丘",
          "きゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yōgan enchōkyū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "yougan'wentyaukiu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ようがんゑんちやうきう",
      "roman": "yougan'wentyaukiu",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "溶岩圓頂丘",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ようがん えんちょうきゅう",
        "hhira": "ようがんゑんちやうきう"
      },
      "expansion": "溶(よう)岩(がん)円(えん)頂(ちょう)丘(きゅう) • (yōgan enchōkyū) ^(←ようがんゑんちやうきう (yougan'wentyaukiu)?)",
      "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 ゑ",
        "Japanese terms read with on'yomi",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with secondary school kanji",
        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms spelled with 丘 read as きゅう",
        "Japanese terms spelled with 円 read as えん",
        "Japanese terms spelled with 岩 read as がん",
        "Japanese terms spelled with 溶 read as よう",
        "Japanese terms spelled with 頂 read as ちょう",
        "Japanese terms with 5 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation with pitch accent",
        "Japanese terms with Nakadaka pitch accent (Tōkyō)",
        "Japanese terms with multiple readings",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Geology"
      ],
      "glosses": [
        "lava dome"
      ],
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "lava dome",
          "lava dome"
        ]
      ],
      "raw_glosses": [
        "(geology) lava dome"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "よーがんえんちょーきゅう"
    },
    {
      "ipa": "[jo̞ːɡã̠ɰ̃ẽ̞ɲ̟t͡ɕo̞ːkʲɨː]"
    }
  ],
  "word": "溶岩円頂丘"
}