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delusion definition

de·lu·sion (di lo̵̅o̅′z̸hən)

noun

  1. a deluding or being deluded
  2. a false belief or opinion
  3. Psychiatry a false, persistent belief maintained in spite of evidence to the contrary

Etymology: ME delusioun < LL delusio < delusus, pp. of deludere

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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