Etymology
Advertisement

ratsbane (n.)

"rat poison, arsenic," 1520s; see rat (n.) + bane. Compare henbane, fleabane, wolfsbane.

updated on April 29, 2021

Advertisement
Advertisement
Definitions of ratsbane from WordNet

ratsbane (n.)
a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer;
Synonyms: arsenic / arsenic trioxide / arsenous anhydride / arsenous oxide / white arsenic
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.