Reference Terms
from Wikipedia, the free encyclopedia


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).

Note:   The above text is excerpted from the Wikipedia article "Delusion", which has been released under the GNU Free Documentation License.
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November 29, 2015

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