"Nijmegen breakage syndrome" meaning in English

{
  "etymology_text": "Named after the Dutch city of Nijmegen, where the condition was first described.",
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      "expansion": "Nijmegen breakage syndrome (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      ],
      "glosses": [
        "A rare congenital disorder causing chromosomal instability."
      ],
      "id": "en-Nijmegen_breakage_syndrome-en-noun-2KgV7bX1",
      "links": [
        [
          "congenital",
          "congenital"
        ],
        [
          "disorder",
          "disorder"
        ],
        [
          "chromosomal",
          "chromosomal"
        ],
        [
          "instability",
          "instability"
        ]
      ],
      "synonyms": [
        {
          "word": "Berlin breakage syndrome"
        },
        {
          "word": "Seemanova syndrome"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "Nijmegen breakage syndrome"
      ]
    }
  ],
  "word": "Nijmegen breakage syndrome"
}

{
  "etymology_text": "Named after the Dutch city of Nijmegen, where the condition was first described.",
  "head_templates": [
    {
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      },
      "expansion": "Nijmegen breakage syndrome (uncountable)",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A rare congenital disorder causing chromosomal instability."
      ],
      "links": [
        [
          "congenital",
          "congenital"
        ],
        [
          "disorder",
          "disorder"
        ],
        [
          "chromosomal",
          "chromosomal"
        ],
        [
          "instability",
          "instability"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "Nijmegen breakage syndrome"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Berlin breakage syndrome"
    },
    {
      "word": "Seemanova syndrome"
    }
  ],
  "word": "Nijmegen breakage syndrome"
}