Meaning of arsenic

Definition of arsenic

(noun) a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar

Other information on arsenic

WIKIPEDIA results for arsenic
Amazon results for arsenic