Definitions for "ORBITAL MOTION"
Orbital motion refers to the addition of circular motion to the sabre saw blade. Orbital motion allows for faster cuts than a straight reciprocating motion. Orbital motion also helps remove debris from the blade's path. Four-position sabre saw models adjust to small and medium orbits for light metals, hardwoods and plastics; larger orbits make fast cuts through wood and plasterboard.
motion of an object in an orbit around a fixed point; "satellites in orbital rotation"
Continuous motion in a closed path such as a circle or an ellipse.
The article on magnetism states that the physical cause of an atomic magnetic dipole (or moment) is two kinds of movement of electrons.