traction in WordNet English dictionary

1. the friction between a body and the surface on which it moves (as between an automobile tire and the road)
   grip  traction  adhesive friction 
   
2. (orthopedics) the act of pulling on a bone or limb (as in a fracture) to relieve pressure or align parts in a special way during healing
   "his leg was in traction for several days"
   traction