| 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. |
| tun·ing fork (tōō'nĭng, tyōō'-) n. A small two-pronged metal device that when struck produces a sound of fixed pitch that is used as a reference, as in tuning musical instruments. |
tuning fork
narrow, two-pronged steel bar that when tuned to a specific musical pitch retains its tuning almost indefinitely. It was apparently invented by George Frideric Handel's trumpeter John Shore shortly before Shore's death in 1752.
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