Definitions for vibratovɪˈbrɑ toʊ, vaɪ-
Random House Webster's College Dictionary
vi•bra•tovɪˈbrɑ toʊ, vaɪ-(n.)(pl.)-tos.
a pulsating effect produced in vocal or instrumental music by rapid but slight alternations in pitch.
Category: Music and Dance
Origin of vibrato:
1860–65; < It < L vibrātus (ptp.); see vibrate
(music) a pulsating effect in an instrumental or vocal tone produced by slight and rapid variations in pitch
The musical effect or technique where the pitch or frequency of a note or sound is quickly and repeatedly raised and lowered over a small distance for the duration of that note or sound.
Origin: Borrowed from vibrato, past participle of vibrare meaning "to vibrate" or "to quiver"