唐氏综合症
táng​shì​zōng​hé​zhèng

Down syndrome

  1. 唐 táng
    Tang
    A common Chinese surname.
  2. 氏 shì noun
    [honorific suffix]
    Added after surnames to refer to a person, a family, or a school of thought; often used for historical figures, celebrities, or professionals.
  3. 综合症 綜合症 zōng​hé​zhèng noun
    syndrome
    syndrome; a group of signs and symptoms that occur together and characterize a particular disease or condition