Noun
dissociative identity disorder (countable and uncountable, plural dissociative identity disorders)
(psychiatry) A mental disorder characterized by the presence of two or more personality states or distinct identities that repeatedly take control of a person's behavior.
One of the films in the same trilogy as stars McAvoy as a man with Dissociative Identity Disorder. Source: Internet
They may have been diagnosed in the past with Generalized Anxiety Disorder, Major Depressive Disorder, and even Dissociative Identity Disorder with Psychosis. Source: Internet