Delusion

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Dictionary Meaning and Definition on 'Delusion'

Delusion Meaning and Definition from WordNet (r) 2.0
    delusion n
  1. (psychology) an erroneous belief that is held in the face of evidence to the contrary [syn: psychotic belief]
  2. a mistaken or unfounded opinion or idea; "he has delusions of competence"; "his dreams of vast wealth are a hallucination" [syn: hallucination]
  3. the act of deluding; deception by creating illusory ideas [syn: illusion, head game]
Delusion Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Delusion \De*lu"sion\n. [L. delusio, fr. deludere. See Delude.]
  1. The act of deluding; deception; a misleading of the mind. --Pope.
  2. The state of being deluded or misled.
  3. That which is falsely or delusively believed or propagated; false belief; error in belief. And fondly mourned the dear delusion gone. --Prior. Syn: Delusion, Illusion. Usage: These words both imply some deception practiced upon the mind. Delusion is deception from want of knowledge; illusion is deception from morbid imagination. An illusion is a false show, a mere cheat on the fancy or senses. It is, in other words, some idea or image presented to the bodily or mental vision which does not exist in reality. A delusion is a false judgment, usually affecting the real concerns of life. Or, in other words, it is an erroneous view of something which exists indeed, but has by no means the qualities or attributes ascribed to it. Thus we speak of the illusions of fancy, the illusions of hope, illusive prospects, illusive appearances, etc. In like manner, we speak of the delusions of stockjobbing, the delusions of honorable men, delusive appearances in trade, of being deluded by a seeming excellence. ``A fanatic, either religious or political, is the subject of strong delusions; while the term illusion is applied solely to the visions of an uncontrolled imagination, the chimerical ideas of one blinded by hope, passion, or credulity, or lastly, to spectral and other ocular deceptions, to which the word delusion is never applied.'' --Whately.
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Wikipedia Meaning and Definition on 'Delusion'


A delusion is a fixed belief that is either false, fanciful, or derived from deception. In psychiatry, it is defined to be a belief that is pathological (the result of an illness or illness process) and is held despite evidence to the contrary. As a pathology, it is distinct from a belief based on false or incomplete information, dogma, stupidity, apperception, illusion, or other effects of perception.

Delusions typically occur in the context of neurological or mental illness, although they are not tied to any particular disease and have been found to occur in the context of many pathological states (both physical and mental). However, they are of particular diagnostic importance in psychotic disorders and particularly in schizophrenia, paraphrenia, manic episodes of bipolar disorder, and psychotic depression.

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'Delusion' in famous quotation sentence


* If we can dispel the delusion that learning about computers should be an activity of fiddling with array indexes and worrying whether X is an integer or a real number, we can begin to focus on programming as a source of ideas. - Harold Abelson

* A human being is part of a whole, called by us the 'Universe,' a part limited in time and space. He experiences himself, his thoughts and feelings, as something separated from the rest--a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest us. Our task must be to free ourselves from this prison by widening our circles of compassion to embrace all living creatures and the whole of nature in its beauty. - Albert Einstein

* No man is happy without a delusion of some kind. Delusions are as necessary to our happiness as realities. - Christian Nestell Bovee


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Delusion Sample Sentences in News


  • Real-Life Werewolves: Psychiatry Re-Examines Rare Delusion
    Intrigued by treating a patient who thought he was a werewolf, Dr. Jan Dirk Blom, an assistant professor of psychiatry at the University of Groningen, in the Netherlands, mined the archives of psychiatry to find out just how common the condition is. Among them, 13 reports met the criteria for clinical lycanthropy, the medical term for having delusions of being ab Read more on this news related to 'Delusion'
  • Peugeot, France's Three-Headed Monster, Bases Recovery Plan On Delusion
    Financially troubled Peugeot of France, Western Europe’s second-biggest car manufacturer in terms of sales, has based its recovery plan partly on the delusion that it can magically transform its vehicles into premium products commanding big profit margins, just like the Germans. Peugeot and its Citroen brand sold 1.3 million cars in [...] Read more on this news related to 'Delusion'
  • Bibi's grand delusion: 'no' is not going to get us anywhere on Iran - or anything | Michael Cohen
    Michael Cohen: The uncompromising worldview of Binyamin Netanyahu diminishes his influence in Israel and the US. Will he wake up? Michael Cohen Read more on this news related to 'Delusion'

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