Entry 1 sense Webster, 1913 Vibrator /vīb'-rāt-ẽr/ · Vi·bra·tor · IPA /ˈvaɪbɹeɪtɚ/ 01 n. One that vibrates, or causes vibration or oscillation of any kind; 1. One that vibrates, or causes vibration or oscillation of any kind;(Elec.)