hypochondriasis Meaning, Definition & Usage

  1. noun chronic and abnormal anxiety about imaginary symptoms and ailments
    hypochondria.

WordNet

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

Webster 1913