Medical Dictionary

folie à deux

noun \-(ˌ)ä-ˈ̅, -ˈdə\
plural folies à deux \ˌfō-ˈlē(z)-(ˌ)ä-\

Medical Definition of FOLIE À DEUX

:  the presence of the same or similar delusional ideas in two persons closely associated with one another


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears