DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   atomic number 64
       n 1: a ductile silvery-white ductile ferromagnetic trivalent
            metallic element of the rare earth group [syn:
            gadolinium, Gd, atomic number 64]