| 单词 | Down's syndrome |
| 释义 | Word Frequency Down's syndrome or US Down syndrome noun pathology a. a condition caused by the presence of an extra copy of chromosome 21 resulting in learning difficulties and physical differences, such as shorter stature Former name (offensive): mongolism. Technical name: trisomy 21b. (as modifier) a Down's syndrome baby Word origin C19: after John Langdon-Down (1828–96), English physician |
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