Dictionary.net

• Person, thing, that vibrates, esp. (Electr., Teleg.) kinds of vibrating reed, (Mus.) reed in reed-organ, (Print.) inking-roller with vibrating& rotary movements.

1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry

• An apparatus used in vibratory treatment.

1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland