DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   cleft
       adj 1: having one or more incisions reaching nearly to the
              midrib [syn: cleft, dissected]
       n 1: a split or indentation in something (as the palate or chin)
       2: a long narrow opening [syn: crack, cleft, crevice,
          fissure, scissure]