DuckCorp Dico

Found 2 definitions

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   decelerate \decelerate\ v. i.
      1. 1 to reduce speed; as, The car decelerated. Opposite of
         accelerate.
      Syn: slow, slow down, slow up, retard.
           [WordNet 1.5]
   
                   
                 

2.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   decelerate \decelerate\ v. t.
      to cause to reduce speed. Opposite of accelerate.
      Syn: slow down.
           [WordNet 1.5]