Ka*lei"do*phon\, Kaleidophone \Ka*lei"do*phone\, [Gr. ? beautiful + ? appearance, form + ? sound.] (Physics.) An instrument invented by Professor Wheatstone, consisting of a reflecting knob at the end of a vibrating rod or thin plate, for making visible, in the motion of a point of light reflected from the knob, the paths or curves corresponding with the musical notes produced by the vibrations.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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