Reference meaning
folie a deux
Last updated
the simultaneous occurrence of symptoms of a mental disorder (as delusions) in two persons who are closely related (as siblings or man and wife)
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 14387604-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.