Source : WordNet®

GD
     n 1: a nerve agent easily absorbed into the body; a lethal
          cholinesterase inhibitor that is highly toxic when
          inhaled [syn: {soman}]
     2: a ductile silvery-white ductile ferromagnetic trivalent
        metallic element of the rare earth group [syn: {gadolinium},
         {atomic number 64}]

Source : Free On-Line Dictionary of Computing

gd
     
         The {country code} for Grenada.
     
        (1999-01-27)