A vibrator is an electric device which vibrates. It is used in massage to reduce pain, or to give sexual pleasure.
vibrator in British English
(vaɪˈbreɪtə)
noun
1.
a.
a device for producing a vibratory motion, such as one used in massage or in the distribution of wet concrete in moulds
b.
such a device with a vibrating part or tip, used as a dildo
2.
a device in which a vibrating conductor interrupts a circuit to produce a pulsating current from a steady current, usually so that the current can then be amplified or the voltage transformed
See also chopper (sense 6)
vibrator in American English
(ˈvaɪˌbreɪtər)
noun
something that vibrates or causes vibration
; specif.,
a.
the hammer of an electric bell
b.
a vibrating electrical device used in massage or for sexual stimulation
c. Electronics
an electromagnetic device with contacts on a tuned, vibrating steel reed or armature that converts a steady or direct current into a pulsating or alternating current