|1.||a false appearance or deceptive impression of reality: the mirror gives an illusion of depth|
|2.||a false or misleading perception or belief; delusion: he has the illusion that he is really clever|
|3.||psychol See also hallucination a perception that is not true to reality, having been altered subjectively in some way in the mind of the perceiver|
|4.||a very fine gauze or tulle used for trimmings, veils, etc|
|[C14: from Latin illūsiō deceit, from illūdere; see |
illusion il·lu·sion (ĭ-lōō'zhən)
An erroneous perception of reality.
An erroneous concept or belief.
The condition of being deceived by a false perception or belief.
Something, such as a fantastic plan or desire, that causes an erroneous belief or perception.
a misrepresentation of a "real" sensory stimulus-that is, an interpretation that contradicts objective "reality" as defined by general agreement. For example, a child who perceives tree branches at night as if they are goblins may be said to be having an illusion. An illusion is distinguished from a hallucination, an experience that seems to originate without an external source of stimulation. Neither experience is necessarily a sign of psychiatric disturbance, and both are regularly and consistently reported by virtually everyone.
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