hy·po·chon·dri·a·sis /-ˈdraɪəsəs/
  臆想症
  hy·po·chon·dri·a·sis /-ˈdraɪəsəs/ 名詞
  病疑(症),疑病
  Hy·po·chon·dri·a·sis n.  Med. A mental disorder in which melancholy and gloomy views torment the affected person, particularly concerning his own health; a morbid and deluded belief that one is afflicted with disease.
  Syn: -- hypochondria.
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  hypochondriasis
       n : chronic and abnormal anxiety about imaginary symptoms and
           ailments [syn: hypochondria]