Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ratsbane

1 sense of ratsbane

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)