arsenic   (Sound)

The noun arsenic has 2 senses

• arsenic, arsenic trioxide, arsenous anhydride, arsenous oxide, white arsenic, ratsbane -- (a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer)


• arsenic, As, atomic number 33 -- (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)