Down's syndrome
/daʊn/noun
mass noun
- Medicine a congenital disorder arising from a chromosome defect, causing intellectual impairment and physical abnormalities including short stature and a broad facial profile. It arises from a defect involving chromosome 21, usually an extra copy (trisomy-21).【医】唐氏综合征, 先天愚型, 伸舌样白痴。
USAGE
Of relatively recent coinage, Down's syndrome is the accepted term in modern use, and former terms such as mongol and mongolism, which are likely to cause offence, should be avoided.
词源
1960s: named after John L. H. Down (1828- 96), the English physician who first described it.