DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   boiler
       n 1: sealed vessel where water is converted to steam [syn:
            boiler, steam boiler]
       2: a metal pot for stewing or boiling; usually has a lid [syn:
          kettle, boiler]