Question

What is oscillation

Answer 1

movement back and forth at a regular speed

Answer 2

Oscillation:

Oscillation can be defined simply as a variation that is repetitive (in time) of measures about a value which is central, or a value between two or more accounts of different states. The oscillation occurs not only in the mechanical system but it also occurs in dynamic systems areas of every scientific founding.  

The mechanic systems in oscillation can be described by vibrations, for example, a swinging pendulum. For dynamic systems include the circulation of blood in the human heart, guitar strings, e.t.c.