phonoscope

1 definition found

phonoscope - Collaborative International Dictionary of English v.0.48 :

  Phonoscope \Pho"no*scope\, n. [Phono- + -scope.] (Physics)
     (a) An instrument for observing or exhibiting the motions or
         properties of sounding bodies; especially, an apparatus
         invented by K["o]nig for testing the quality of musical
         strings.
     (b) An instrument for producing luminous figures by the
         vibrations of sounding bodies.
         [1913 Webster]