"crustal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "crust",
        "3": "al"
      },
      "expansion": "crust + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "From crust + -al.",
  "forms": [
    {
      "form": "more crustal",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most crustal",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crustal (comparative more crustal, superlative most crustal)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -al",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 189",
          "text": "The hope was to lower a drill through over 4,000 metres of Pacific Ocean water off the coast of Mexico and drill some 5,000 metres through relatively thin crustal rock.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of, pertaining to, or forming a crust, especially the crust of the Earth or other planet."
      ],
      "id": "en-crustal-en-adj-12iL4pps",
      "links": [
        [
          "crust",
          "crust"
        ],
        [
          "Earth",
          "Earth"
        ],
        [
          "planet",
          "planet"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkɹʌstəl/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "crustal"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "crust",
        "3": "al"
      },
      "expansion": "crust + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "From crust + -al.",
  "forms": [
    {
      "form": "more crustal",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most crustal",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crustal (comparative more crustal, superlative most crustal)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English 2-syllable words",
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -al",
        "English terms with IPA pronunciation",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 189",
          "text": "The hope was to lower a drill through over 4,000 metres of Pacific Ocean water off the coast of Mexico and drill some 5,000 metres through relatively thin crustal rock.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of, pertaining to, or forming a crust, especially the crust of the Earth or other planet."
      ],
      "links": [
        [
          "crust",
          "crust"
        ],
        [
          "Earth",
          "Earth"
        ],
        [
          "planet",
          "planet"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkɹʌstəl/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "crustal"
}