Search Result for "folie a deux":
Wordnet 3.0

NOUN (1)

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


WordNet (r) 3.0 (2006):

folie a deux n 1: the simultaneous occurrence of symptoms of a mental disorder (as delusions) in two persons who are closely related (as siblings or man and wife)