- phoneidoscope
Useful english dictionary. 2012.
Useful english dictionary. 2012.
Phoneidoscope — Pho*nei do*scope, n. [Phono + Gr. e i^dos form + scope.] (Physics) 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… … The Collaborative International Dictionary of English