vi·bra·tion 
(vī-brāshən)
(vī-brāshən)n.
1.
a. The act of vibrating.
b. The condition of being vibrated.
2. Physics
a. A rapid linear motion of a particle or of an elastic solid about an equilibrium position.
b. A periodic process.
3. A single complete vibrating motion; a quiver.
4. Informal A distinctive emotional quality or atmosphere that is sensed or experienced by someone. Often used in the plural: "Miami gives off the same vibrations, the same portent of disaster, but with a difference" (James Atlas).
vi·bration·al adj.