from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A device that produces a visible display of the mechanical properties of a sounding body, especially of musical instruments.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a device that shows an image representing the acoustical properties of a musical instrument etc.

from the GNU version of the Collaborative International Dictionary of English

  • n. An instrument for observing or exhibiting the motions or properties of sounding bodies; especially, an apparatus invented by König for testing the quality of musical strings.
  • n. An instrument for producing luminous figures by the vibrations of sounding bodies.

from The Century Dictionary and Cyclopedia

  • n. A machine for recording music as it is played or sung, or for testing the quality of strings for musical instruments.
  • n. Same as microphone.


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