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Feb 12, 2012
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Dictionary


il•lu•sion



Pronunciation: (i-lOO'zhun), [key]
—n.
1. something that deceives by producing a false or misleading impression of reality.
2. the state or condition of being deceived; misapprehension.
3. an instance of being deceived.
4. Psychol.a perception, as of visual stimuli (optical illusion), that represents what is perceived in a way different from the way it is in reality.
5. a very thin, delicate tulle of silk or nylon having a cobwebbed appearance, for trimmings, veilings, and the like.
6. Obs.the act of deceiving; deception; delusion.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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