Definition of Opeidoscope. Meaning of Opeidoscope. Synonyms of Opeidoscope
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Definition of Opeidoscope
Opeidoscope O*pei"do*scope, n. [Gr. ?, ?, voice + ? form +
An instrument, consisting of a tube having one end open and
the other end covered with a thin flexible membrance to the
center of which is attached a small mirror. It is used for
exhibiting upon a screen, by means of rays reflected from the
mirror, the vibratory motions caused by sounds produced at
the open end of the tube, as by speaking or singing into it.
--A. E. Dolbear.
Meaning of Opeidoscope from wikipedia
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