a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
[ Syn: arsenic , arsenic trioxide , arsenous anhydride , arsenous oxide , white arsenic ]
a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
[ Syn: arsenic , arsenic trioxide , arsenous anhydride , arsenous oxide , white arsenic ]