Found 1 items, similar to Gd.
English → English (WordNet) Definition: GD 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]