Dissociative disorder and Psychological disorder

Dissociative disorder noun - Dissociation so severe that the usually integrated functions of consciousness and perception of self break down.

Psychological disorder and dissociative disorder are semantically related. In some cases you can use "Psychological disorder" instead a noun phrase "Dissociative disorder".

Psychological disorder noun - (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness.

Dissociative disorder and psychological disorder are semantically related. Sometimes you can replace phrase "Dissociative disorder" with "Psychological disorder", this phrases are similar.