- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tuning fork
The incommunicable thrill of things, that is the tuning-fork by which we test the flatness of our art.Must Read Novels: Ballard, Dybek, and Krasznahorkai
Jacob Silverman, Malcolm Forbes, John McIntyre
April 23, 2012
As for Jacob, he has nothing but his tuning-fork and a seat with the rest.The Dew of Their Youth
S. R. Crockett
These requirements are best met by a tuning-fork of not too low a pitch.Spiders
The twang of the tuning-fork was drowned by a succession of cries.Old Caravan Days
Mary Hartwell Catherwood
Like his ancestor at Dunbar, he struck his tuning-fork on his sword.
This he did at the beginning of every verse by striking a tuning-fork on his bloody sword.
- 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
Word Origin and History for tuning fork
Online Etymology Dictionary, © 2010 Douglas Harper