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Definition of: iridescence
(ir′ə·des′əns) noun Optics
The many–colored appearance caused by the interference effect of light rays striking the outer and inner surface layers of various bodies, as clouds, mother–of–pearl, oil films, etc. [<IRIDESCENT <Gk. iris, iridos rainbow + -ESCENCE]
—ir′i·des′cent adjective
—ir′i·des′cent·ly adverb
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