A simple definition is proposed by Don Rosenthal:
"The quality of mind that
watches the passing parade of what is going on, inside and out, in silence and without the "me" can be called meditation.
Meditation can also mean the act of sitting in such a state when you are quiet and undisturbed". (Rosenthal 1993)
It is a skill, like reading or writing, which can be learned by anyone, so kick back, relax and read on.