Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A condition in which symptoms of a mental disorder, such as the same delusional beliefs or ideas, occur simultaneously in two individuals who share a close relationship or association.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A rare syndrome in which a symptom of psychosis (particularly a paranoid or delusional belief) is transmitted from one person to another.

Etymologies

French : folie, madness + à, between + deux, two.
(American Heritage® Dictionary of the English Language, Fourth Edition)
French folie à deux, "madness of two (people)". (Wiktionary)

Examples

Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • A shared psychosis or delusion, especially one passed from one to another.

    May 16, 2008