mania Meaning, Definition & Usage

  1. noun an irrational but irresistible motive for a belief or action
    passion; cacoethes.
  2. noun a mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently
    manic disorder.

WordNet

Ma"ni*a noun
Etymology
L. mania, Gr. , fr. to rage; cf. OE. manie, F. manie. Cf. Mind, n., Necromancy.
Definitions
  1. Violent derangement of mind; madness; insanity. Cf. Delirium.
  2. Excessive or unreasonable desire; insane passion affecting one or many people; as, the tulip mania. Syn. -- Insanity; derangement; madness; lunacy; alienation; aberration; delirium; frenzy. See Insanity.

Webster 1913