"geologician" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "geology",
        "3": "ician"
      },
      "expansion": "geology + -ician",
      "name": "suf"
    }
  ],
  "etymology_text": "From geology + -ician.",
  "forms": [
    {
      "form": "geologicians",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "geologician (plural geologicians)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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 -ician",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geology",
          "orig": "en:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "geologist"
      ],
      "id": "en-geologician-en-noun-p-xQ24qN",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "geologist",
          "geologist"
        ]
      ],
      "raw_glosses": [
        "(obsolete, geology) geologist"
      ],
      "tags": [
        "obsolete"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "word": "geologician"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "geology",
        "3": "ician"
      },
      "expansion": "geology + -ician",
      "name": "suf"
    }
  ],
  "etymology_text": "From geology + -ician.",
  "forms": [
    {
      "form": "geologicians",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "geologician (plural geologicians)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ician",
        "English terms with obsolete senses",
        "Pages with 1 entry",
        "en:Geology"
      ],
      "glosses": [
        "geologist"
      ],
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "geologist",
          "geologist"
        ]
      ],
      "raw_glosses": [
        "(obsolete, geology) geologist"
      ],
      "tags": [
        "obsolete"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "word": "geologician"
}