\Vi"brate\, v. t. [imp. & p. p. {Vibrate}; p. pr. & vb.
n. {Vibrating}.] [L. vibratus, p. p. of vibrare, v. t. & v.
i., to snake, brandish, vibrate; akin to Skr. vip to tremble,
Icel. veifa to wave, vibrate. See {Waive} and cf. {Whip}, v.
t.]
1. To brandish; to move to and fro; to swing; as, to vibrate
   a sword or a staff.
2. To mark or measure by moving to and fro; as, a pendulum
   vibrating seconds.
3. To affect with vibratory motion; to set in vibration.
         Breath vocalized, that is, vibrated or undulated,
         may . . . impress a swift, tremulous motion.
                                               --Holder.
         Star to star vibrates light.          --Tennyson.

\Vi"brate\, v. i.
1. To move to and fro, or from side to side, as a pendulum,
   an elastic rod, or a stretched string, when disturbed from
   its position of rest; to swing; to oscillate.
2. To have the constituent particles move to and fro, with
   alternate compression and dilation of parts, as the air,
   or any elastic body; to quiver.
3. To produce an oscillating or quivering effect of sound;
   as, a whisper vibrates on the ear. --Pope.
4. To pass from one state to another; to waver; to fluctuate;
   as, a man vibrates between two opinions.