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From The Collaborative International Dictionary of English v.0.48:
Kaleidoscope \Ka*lei"do*scope\, n. [Gr. ? beautiful + e'i^dos form + -scope.] An instrument invented by Sir David Brewster, which contains loose fragments of colored glass, etc., and reflecting surfaces so arranged that changes of position exhibit its contents in an endless variety of beautiful colors and symmetrical forms. It has been much employed in arts of design. [1913 Webster] Shifting like the fragments of colored glass in the kaleidoscope. --G. W. Cable. Kaleidoscopic