Chronic mental disorders in which there has been an insidious development of a permanent and unshakeable delusional system (persecutory delusions or delusions of jealousy), accompanied by preservation of clear and orderly thinking. Emotional responses and behavior are consistent with the delusional state.

Synonyms: Disorder, Paranoid, Paranoid Disorder, Disorders, Paranoid, Paranoid Disorders, Paranoia, Paranoias, Paranoid Psychoses, Psychoses, Paranoid