what is rotation
Full Definition of ROTATION. 1. a (1) : the action or process of rotating on or as if on an axis or center (2) : the act or an instance of rotating something b: one complete turn: the angular displacement required to return a rotating body or figure to its original orientation.2.b: crop rotation.3.ull Definition of ROTATION. 1. a (1) : the action or process of rotating on or as if on an axis or center (2) : the act or an instance of rotating something b: one complete turn: the angular displacement required to return a rotating body or figure to its original orientation.