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Medical Term:

dissociative identity disorder


  1. a disorder in which two or more distinct conscious personalities alternately prevail in the same person, sometimes without any one personality being aware of the other(s).
  2. a DSM diagnosis that is established when the specified criteria are met.

See: multiple personality disorder, dissociation3

Synonym(s): multiple personality

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.