DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   atomic number 3
       n 1: a soft silver-white univalent element of the alkali metal
            group; the lightest metal known; occurs in several minerals
            [syn: lithium, Li, atomic number 3]