Definition of steppers:
(n) :
A person or animal that steps, especially energetically or high.
(n) :
A dancer.
(n) :
A kind of electric motor that advances in steps rather than smoothly.
(n) :
A type of exercise machine.
(n) :
Anything that moves or advances in steps.
(n) :
A device used in the manufacture of microcircuits to apply a photolithographic image repeatedly, at regular intervals (by imaging, moving a step and repeating).