(pharmacology) Any of a class of psychedelic drugs characterized by intense feelings of depersonalization, derealization, and analgesia.

plural of dissociative drug

Any of several mental disorders that affect consciousness.

plural of dissociative disorder

(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.

plural of dissociative identity disorder

(psychiatry) A mental health diagnosis which fits the DSM-5 criteria for a dissociative disorder, but does not meet criteria for identified subtypes.