\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.