"von Economo disease" meaning in English

{
  "etymology_text": "After Constantin von Economo, Austrian psychiatrist and neurologist.",
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      "expansion": "von Economo disease (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "English entries with incorrect language header",
          "parents": [
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      ],
      "glosses": [
        "sleepy sickness"
      ],
      "id": "en-von_Economo_disease-en-noun-SlQZrpIm",
      "links": [
        [
          "sleepy sickness",
          "sleepy sickness"
        ]
      ],
      "synonyms": [
        {
          "word": "von Economo's disease"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "Constantin von Economo"
      ]
    }
  ],
  "word": "von Economo disease"
}

{
  "etymology_text": "After Constantin von Economo, Austrian psychiatrist and neurologist.",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "von Economo disease"
      },
      "expansion": "von Economo disease (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "Pages with 1 entry"
      ],
      "glosses": [
        "sleepy sickness"
      ],
      "links": [
        [
          "sleepy sickness",
          "sleepy sickness"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "Constantin von Economo"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "von Economo's disease"
    }
  ],
  "word": "von Economo disease"
}