A delusion is commonly defined as a fixed false belief and is used in everyday language to describe a belief that is either false, fanciful or derived from deception.
In psychiatry, the definition is necessarily more precise and implies that the belief is pathological (the result of an illness or illness process).
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Delusion at Wikipedia.org. See the Wikipedia copyright page for more details. Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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