folie à deux(redirected from Folie simultanée)
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folie à deux[¦fō·lē ä ¦du̇]
Identical or similar mental disorders affecting two individuals, usually members of the same family living together. Also known as shared paranoid delusion.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.