DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   Tc
       n 1: a crystalline metallic element not found in nature; occurs
            as one of the fission products of uranium [syn:
            technetium, Tc, atomic number 43]
       2: a permanent council of the United Nations that commissions a
          country (or countries) to undertake the administration of a
          territory [syn: Trusteeship Council, TC]