PHONEIDOSCOPE


Meaning of PHONEIDOSCOPE in English

( n. )

An instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film of soap solution thin enough to give colored bands, the form and position of which are affected by sonorous vibrations.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.