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tuning fork

a steel instrument consisting of a stem with two prongs, producing a musical tone of definite, constant pitch when struck, and serving as a standard for tuning musical instruments, making acoustical experiments, and the like.
Origin of tuning fork
First recorded in 1765-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for tuning fork
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Historical Examples
  • The diaphragm will then give out a sound similar to that of the tuning fork.

    Physics Willis Eugene Tower
  • Let us imagine that we are looking at the two square ends of a tuning fork.

    Physics Willis Eugene Tower
  • If we take a tuning fork, and hold it to the ear, we hear no sound.

    The Reason Why Anonymous
  • He arose manfully and smote the tuning fork sharply on the table.

    The Hills of Desire Richard Aumerle Maher
  • Middle C is obtained in the usual way, from the tuning fork.

    Piano Tuning J. Cree Fischer
  • In each of these openings is a piston and above each piston is a tuning fork.

  • We strike one of the pistons with the tuning fork, and continue to strike it until the fork sets up vibrations.

  • A tuning fork, receiving the sound vibrations from one of a similar size and shape begins to vibrate in turn.

  • Then, when he did appear, he was questioned anxiously as to whether he had brought his tuning fork safe with him.

    The Hills of Desire Richard Aumerle Maher
British Dictionary definitions for tuning fork

tuning fork

a two-pronged metal fork that when struck produces a pure note of constant specified pitch. It is used to tune musical instruments and in acoustics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for tuning fork

1799, from gerundive of tune (v.) + fork (n.). Invented 1711 by John Shore.

Online Etymology Dictionary, © 2010 Douglas Harper
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