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Folie a Deux

nounverified·updated May 18, 2026

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

MWE

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Folie a Deuxes
possessive
Folie a Deux's
pluralpossessive
Folie a Deuxes'