Down syndrome

Etymology
Named after (1828–1896), an English physician who first described the condition as a distinct form of mental disability in the 1860s.

Noun

 * 1)  A genetic disorder caused by the presence of all or part of a third copy of chromosome 21 (a chromosomal excess), whereby the patients typically have a delay in cognitive ability and physical growth, as well as a small head and tilted eyelids.

Usage notes
The condition is known only as in the UK and Canada.

Translations

 * Arabic: مُتَلَازِمَة دَاوْن
 * Catalan:
 * Chinese:
 * Cantonese: 唐氏綜合症, 唐氏症
 * Mandarin: ,
 * Czech: Downův syndrom
 * Danish: Downs syndrom
 * Dutch: syndroom van Down, ,
 * Estonian: Downi sündroom
 * Finnish: ,
 * French: ,
 * German: /, ,
 * Greek:
 * Hebrew:
 * Hindi: डाउन सिंड्रोम
 * Hungarian:
 * Indonesian: sindrom Down
 * Interlingua: syndrome de Down
 * Italian: sindrome del Down
 * Japanese: ダウン症
 * Korean: 다운 증후군
 * Malay: sindrom Down
 * Norwegian:
 * Bokmål: Downs syndrom
 * Nynorsk: Downs syndrom
 * Persian: سندرم داون
 * Polish:
 * Portuguese:
 * Russian:
 * Spanish: síndrome de Down
 * Swedish:
 * Telugu: డౌన్ సిండ్రోము
 * Turkish: Down sendromu
 * Vietnamese: hội chứng Down
 * Welsh: syndrom Down