DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   slate
       n 1: (formerly) a writing tablet made of slate
       2: thin layers of rock used for roofing [syn: slate,
          slating]
       3: a fine-grained metamorphic rock that can be split into thin
          layers
       4: a list of candidates nominated by a political party to run
          for election to public offices [syn: slate, ticket]
       v 1: designate or schedule; "He slated his talk for 9 AM"; "She
            was slated to be his successor"
       2: enter on a list or slate for an election; "He was slated for
          borough president"
       3: cover with slate; "slate the roof"