Dictionary![]() ![]() il•lu•mi•na•tionPronunciation: (i-lOO"mu-nā'shun), [key] —n. 1. an act or instance of illuminating. 2. the fact or condition of being illuminated. 3. a decoration of lights, usually colored lights. 4. Sometimes, illuminations. an entertainment, display, or celebration using lights as a major feature or decoration. 5. intellectual or spiritual enlightenment. 6. Also called illuminance, intensity of illumination. Optics.the intensity of light falling at a given place on a lighted surface; the luminous flux incident per unit area, expressed in lumens per unit of area. 7. a supply of light: a source of illumination. 8. decoration of a manuscript or book with a painted design in color, gold, etc. 9. a design used in such decoration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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