folie a deux

English - English

Definition of folie a deux in English English dictionary

the simultaneous occurrence of symptoms of a mental disorder (as delusions) in two persons who are closely related (as siblings or man and wife)

Related Terms

folie à deux

A rare syndrome in which a symptom of psychosis (particularly a paranoid or delusional belief) is transmitted from one person to another

Hyphenation

fo·lie a deux

Etymology

() French folie à deux, "madness of two (people)".