folie à deux

noun fo·lie à deux \ fȯ-lē-ä-ˈdœ , ˌfä-lē-ˌä-ˈdər , -ˈdə \

Definition of folie à deux

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

Origin and Etymology of folie à deux

French, literally, double madness


Medical Dictionary

folie à deux

noun \ -(ˌ)ä-ˈdœ̅, -ˈdə \

medical Definition of folie à deux

plural folies à deux \ˌfō-ˈlē(z)-(ˌ)ä-\
: the presence of the same or similar delusional ideas in two persons closely associated with one another

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something that impedes or restrains

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