"地殻" meaning in Japanese

{
  "forms": [
    {
      "form": "地殻",
      "ruby": [
        [
          "地",
          "ち"
        ],
        [
          "殻",
          "かく"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "chikaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "tikaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ちかく",
      "roman": "tikaku",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ちかく",
        "hhira": "ちかく"
      },
      "expansion": "地(ち)殻(かく) • (chikaku) ^(←ちかく (tikaku)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Geology",
          "orig": "ja:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "chikaku purēto",
          "ruby": [
            [
              "地殻",
              "ちかく"
            ]
          ],
          "word": "地殻プレート"
        }
      ],
      "glosses": [
        "crust"
      ],
      "id": "en-地殻-ja-noun-EBkC6xHC",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "crust",
          "crust"
        ]
      ],
      "raw_glosses": [
        "(geology) crust"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "ちかく"
    },
    {
      "ipa": "[t͡ɕika̠kɯ̟ᵝ]"
    }
  ],
  "word": "地殻"
}

{
  "derived": [
    {
      "roman": "chikaku purēto",
      "ruby": [
        [
          "地殻",
          "ちかく"
        ]
      ],
      "word": "地殻プレート"
    }
  ],
  "forms": [
    {
      "form": "地殻",
      "ruby": [
        [
          "地",
          "ち"
        ],
        [
          "殻",
          "かく"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "chikaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "tikaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ちかく",
      "roman": "tikaku",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ちかく",
        "hhira": "ちかく"
      },
      "expansion": "地(ち)殻(かく) • (chikaku) ^(←ちかく (tikaku)?)",
      "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 spelled with second grade kanji",
        "Japanese terms spelled with secondary school kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "ja:Geology"
      ],
      "glosses": [
        "crust"
      ],
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "crust",
          "crust"
        ]
      ],
      "raw_glosses": [
        "(geology) crust"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "ちかく"
    },
    {
      "ipa": "[t͡ɕika̠kɯ̟ᵝ]"
    }
  ],
  "word": "地殻"
}