"overillustration" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "over",
        "3": "illustration"
      },
      "expansion": "over- + illustration",
      "name": "pre"
    }
  ],
  "etymology_text": "over- + illustration",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "overillustration (uncountable)",
      "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 prefixed with over-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1920, John Livesy Ridgway, The Preparation of Illustrations for Reports of the United States Geological Survey, page 8",
          "text": "There is no rule limiting the number of illustrations that may be used in a publication of the Geological Survey, but in selecting illustrations for a report an author may easily fall into the error of overillustration.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Excessive illustration."
      ],
      "id": "en-overillustration-en-noun-6AevoFH5",
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "overillustration"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "over",
        "3": "illustration"
      },
      "expansion": "over- + illustration",
      "name": "pre"
    }
  ],
  "etymology_text": "over- + illustration",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "overillustration (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with over-",
        "English terms with quotations",
        "English uncountable nouns",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1920, John Livesy Ridgway, The Preparation of Illustrations for Reports of the United States Geological Survey, page 8",
          "text": "There is no rule limiting the number of illustrations that may be used in a publication of the Geological Survey, but in selecting illustrations for a report an author may easily fall into the error of overillustration.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Excessive illustration."
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "overillustration"
}