DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   stepper
       n 1: a professional dancer [syn: hoofer, stepper]
       2: a motor (especially an electric motor) that moves or rotates
          in small discrete steps [syn: stepper, stepping motor]
       3: a horse trained to lift its feet high off the ground while
          walking or trotting [syn: stepper, high stepper]