The idea that abnormal behavior or a medical condition is evidence that a person is under the control of a supernatural power or spirit. This belief was most commonly held in religion and medicine of the medieval period and is also held in many tribal cultures today.

Synonyms: Demonic Possession Spirit Possession Possession, Spirit Demonic Possessions Demon Possession Possessions, Demon Possession, Demonic Possessions, Spirit Possession, Demon Demon Possessions Spirit Possessions Possessions, Demonic