A stepper is a device used in the manufacture of integrated circuits (ICs) that is similar in operation to a slide projector or a photographic enlarger. Steppers are an essential part of the complex process, called photolithography, that creates millions of microscopic circuit elements on the surface of tiny chips of silicon. These chips form the ... Found on http://en.wikipedia.org/wiki/Stepper
[n] - a motor (especially an electric motor) that moves or rotates in small discrete steps 2. [n] - a horse trained to lift its feet high off the ground while walking or trotting Found on http://www.webdictionary.co.uk/definition.php?query=stepper