
• (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.
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http://thinkexist.com/dictionary/meaning/phoneidoscope/

<instrument, 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 coloured bands, the form and position of which are affected by sonorous vibrations. ... Origin: Phono- + Gr. Form + -scope. ... Source: Webster...
Found on
http://www.encyclo.co.uk/local/20973
Pho·nei'do·scope noun [
Phono- + Greek ... 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 colored bands, the form and posit...
Found on
http://www.encyclo.co.uk/webster/P/74

phoneidoscope, phoneidoscopic 1. An instrument for exhibiting the color-figures produced by the action of sound-vibrations upon a thin film, e.g. of soap-solution.2. An instrument for studying the motions of sounding bodies with optical methods.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2737/10
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