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Feb 11, 2012
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Dictionary


vir•tu•al



Pronunciation: (vûr'chOO-ul), [key]
—adj.
1. being such in power, force, or effect, though not actually or expressly such: a virtual dependence on charity.
2. Optics.
a. noting an image formed by the apparent convergence of rays geometrically, but not actually, prolonged, as the image formed by a mirror (opposed to real).
b. noting a focus of a system forming virtual images.
3. temporarily simulated or extended by computer software: a virtual disk in RAM; virtual memory on a hard disk.

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

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