vi·brate 
/ˈvaɪˌbreɪt, Brit vaɪˈbreɪt/ verb
vi·brates; vi·brat·ed; vi·brat·ing /ˈvaɪˌbreɪt, Brit vaɪˈbreɪt/ verb : to move back and forth or from side to side with very short, quick movements [no obj] ▪ The engine was vibrating. [=shaking] ▪ The car started to vibrate. [+ obj] ▪ When you blow into the instrument, the air vibrates the reed.
— vi·bra·to·ry /ˈvaɪbrəˌtori, Brit ˈvaɪbrətri/ adjective
▪ vibratory motion
/ˈvaɪbrəˌtori, Brit ˈvaɪbrətri/ adjective ▪ vibratory motion
