(1):

(n.) An ink-distributing roller in a printing machine, having an additional vibratory motion.

(2):

(n.) Any of various vibrating devices, as one for slackening the warp as a shed opens.

(3):

(n.) An attachment, usually pneumatic, in a molding machine to shake the pattern loose.

(4):

(n.) A vibrating reed, esp. in a reed organ.

(5):

(n.) An oscillator.

(6):

(n.) A device for vibrating the pen of a siphon recorder to diminish frictional resistance on the paper.

(7):

(n.) One that vibrates, or causes vibration or oscillation of any kind;

(8):

(n.) A trembler, as of an electric bell.

(9):

(n.) A vibrating reed for transmitting or receiving pulsating currents in a harmonic telegraph system.