DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   roller
       n 1: a grounder that rolls along the infield
       2: a long heavy sea wave as it advances towards the shore [syn:
          roller, roll, rolling wave]
       3: a small wheel without spokes (as on a roller skate)
       4: a cylinder that revolves
       5: a mechanical device consisting of a cylindrical tube around
          which the hair is wound to curl it; "a woman with her head
          full of curlers is not a pretty sight" [syn: curler, hair
    curler, roller, crimper]
       6: Old World bird that tumbles or rolls in flight; related to
          kingfishers
       7: pigeon that executes backward somersaults in flight or on the
          ground [syn: roller, tumbler, tumbler pigeon]