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.