Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A device, consisting of a reflective ball attached to a vibrating rod or plate, that produces optical figures that correspond to the mode of vibration of the rod or plate

from The Century Dictionary and Cyclopedia

  • n. An instrument invented by Sir Charles Wheatstone for exhibiting the vibrations of an elastic plate or rod, in order to illustrate the phenomena of sound-waves.

Etymologies

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  • The visual form of Pronunciations

    September 11, 2010