a musical percussion instrument that resembles a marimba and is played with mallets, but that has metal instead of wooden bars and has a set of electrically powered resonators for sustaining the tone or creating a vibrato.
vi·bra·phone (vī'brə-fōn') n. A percussion instrument similar to a marimba but having metal bars and rotating disks in the resonators to produce a vibrato. Also called vibraharp.
[Latin vibrāre, to shake; see vibrate + -phone.] vi'bra·phon'ist n.