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Adjective: pathological  ,pa-thu'ló-ji-kul
  1. Caused by or evidencing a mentally disturbed condition
    "a pathological liar"; "a pathological urge to succeed"
  2. Caused by or altered by or manifesting disease or pathology
    "pathological bodily processes";
    - diseased, morbid, pathologic
  3. Of or relating to the practice of pathology
    "pathological laboratory";
    - pathologic

See also: neurotic, psychoneurotic, unhealthy

Encyclopedia: Pathological