Hy`po*chon"dri*a*sis (?), n. [NL. So
named because supposed to have its seat in the hypochondriac regions.
See Hypochondriac, Hypochondrium, and cf. Hyp,
1st Hypo.] (Med.) A mental disorder in which
melancholy and gloomy views torment the affected person, particularly
concerning his own health.