• Webster's Revised Unabridged Dictionary
    • n Debuscope (Opt) A modification of the kaleidoscope; -- used to reflect images so as to form beautiful designs.
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Century Dictionary and Cyclopedia
    • n debuscope A double mirror, composed of two polished surfaces placed at an angle of 70°, used like a kaleidoscope to repeat a pattern or other object.
    • n debuscope It was invented by M. Debus, a French optician, and is used in preparing geometrical decorative designs. Also called chromeidoscope.
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Webster's Revised Unabridged Dictionary
From the inventor, Debus, a French optician + -scope,