"Disease X" meaning in All languages combined

{
  "etymology_text": "Introduced as a placeholder name by the World Health Organization in February 2018.",
  "head_templates": [
    {
      "args": {
        "head": "Disease X"
      },
      "expansion": "Disease X",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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 neologisms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A hypothetical unknown pathogen that could cause a future epidemic."
      ],
      "id": "en-Disease_X-en-name-gMkIH8sp",
      "links": [
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "unknown",
          "unknown"
        ],
        [
          "pathogen",
          "pathogen"
        ],
        [
          "epidemic",
          "epidemic"
        ]
      ],
      "raw_glosses": [
        "(neologism) A hypothetical unknown pathogen that could cause a future epidemic."
      ],
      "tags": [
        "neologism"
      ],
      "wikipedia": [
        "Disease X"
      ]
    }
  ],
  "word": "Disease X"
}

{
  "etymology_text": "Introduced as a placeholder name by the World Health Organization in February 2018.",
  "head_templates": [
    {
      "args": {
        "head": "Disease X"
      },
      "expansion": "Disease X",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English neologisms",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A hypothetical unknown pathogen that could cause a future epidemic."
      ],
      "links": [
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "unknown",
          "unknown"
        ],
        [
          "pathogen",
          "pathogen"
        ],
        [
          "epidemic",
          "epidemic"
        ]
      ],
      "raw_glosses": [
        "(neologism) A hypothetical unknown pathogen that could cause a future epidemic."
      ],
      "tags": [
        "neologism"
      ],
      "wikipedia": [
        "Disease X"
      ]
    }
  ],
  "word": "Disease X"
}