Read Edit View history 第21对三体综合症 dì'èrshíyīduìsāntǐzōnghézhèng Down syndrome Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 第21对三体综合症/ 第21對三體綜合症 dì'èrshíyīduìsāntǐzōnghézhèng Down syndrome trisomy 21, a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 Edit Delete References Add reference synonym 唐氏症/唐氏症 → 第21对三体综合症/第21對三體綜合症 Edit Delete
第21对三体综合症/ 第21對三體綜合症 dì'èrshíyīduìsāntǐzōnghézhèng Down syndrome trisomy 21, a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 Edit Delete