HYPOCHONDRIASIS
hypochondria, hypochondriasis
(noun) chronic and abnormal anxiety about imaginary symptoms and ailments
Source: WordNet® 3.1
Etymology
Noun
hypochondriasis (countable and uncountable, plural hypochondriases)
(medicine) A mental disorder characterized by excessive fear of or preoccupation with a serious illness, despite medical testing and reassurance to the contrary.
Source: Wiktionary
Hy`po*chon"dri*a*sis, n. Etym: [NL. So named because supposed to have
its seat in the hypochondriac regions. See Hypochondriac,
Hypochondrium, and cf. Hyp, 1st Hypo.] (Med.)
Definition: A mental disorder in which melancholy and gloomy views torment
the affected person, particularly concerning his own health.
Source: Webster’s Unabridged Dictionary 1913 Edition