Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun arsenous_anhydride
1 sense of arsenous anhydride
Sense 1
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)
=> trioxide -- (an oxide containing three atoms of oxygen in the molecule)