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delusions - 3 dictionary results

de⋅lu⋅sion

[di-loo-zhuhn]
–noun
1. an act or instance of deluding.
2. the state of being deluded.
3. a false belief or opinion: delusions of grandeur.
4. Psychiatry. a fixed false belief that is resistant to reason or confrontation with actual fact: a paranoid delusion.

Origin:
1375–1425; late ME < L dēlūsiōn- (s. of dēlūsiō), equiv. to dēlūs(us) (ptp. of dēlūdere; see delude ) + -iōn- -ion


de⋅lu⋅sion⋅al, de⋅lu⋅sion⋅ar⋅y, adjective


1. deception. See illusion.
de·lu·sion   (dĭ-lōō'zhən)   
n.  
    1. The act or process of deluding.
    2. The state of being deluded.
  1. A false belief or opinion: labored under the delusion that success was at hand.
  2. Psychiatry A false belief strongly held in spite of invalidating evidence, especially as a symptom of mental illness: delusions of persecution.

[Middle English delusioun, from Latin dēlūsiō, dēlūsiōn-, from dēlūsus, past participle of dēlūdere, to delude; see delude.]
de·lu'sion·al adj.
delusion   (dĭ-l'zhən)  Pronunciation Key 
A false belief strongly held in spite of invalidating evidence, especially as a symptom of mental illness, as in schizophrenia.
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