Vibraphone

n. musical instrument with electrically operated resonators

The vibraphone, sometimes called the vibraharp or simply the vibes, is a musical instrument in the mallet subfamily of the percussion family. It is similar in appearance to the xylophone and marimba, although the vibraphone uses aluminum bars instead of the wooden bars of those instruments. The vibraphone also has a sustain pedal similar to that used on a piano. When the pedal is up, the bars are all damped and the sound of each bar is quite short; with the pedal down, they will sound for several seconds.
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Noun
1. a percussion instrument similar to a xylophone but having metal bars and rotating disks in the resonators that produce a vibrato sound
(synonym) vibraharp, vibes
(hypernym) percussion instrument, percussive instrument

n. vibraphone, musical instrument with electrically operated resonators

of the bar percussion family; metal; similar in appearance to the xylophone.