Noun
-
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
- atomic number 33 -
a white powdered poisonous trioxide of arsenic
used in manufacturing glass and as a pesticide (rat poison) and weed killer
- arsenic trioxide - arsenous anhydride - arsenous oxide - white arsenic