ˈvīˌbrād.ə(r), -ātə- noun
( -s )
1. : a device, instrument, mechanism, attachment, or organ that vibrates or causes vibration or oscillation: as
a. : a vibrating object (as a violin string or a reed in an organ) that produces a tone
b. : an ink-distributing roller in a printing press that has end-to-end vibratory motion as well as rotary motion
c. : a vibrating electrical apparatus used in massage
d. : a usually pneumatic attachment in a molding machine to shake the pattern or match plate loose
e. : a vibrating device (as in an electric bell or buzzer) for opening or closing an electric circuit
f. : a device for vibrating concrete
2. : a device that consists of a standard balance and standard balance spring and is used for determining the strength of balance springs by a comparison of the vibrations
3. : an electromagnetic device that converts low direct current to pulsating direct current or alternating current