noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An industrially important and highly toxic oxide of arsenic that occurs as the mineral claudetite; formula As₂O₃ (though in liquid, gaseous and some solid forms it has molecules of the form As₄O₆). uncountable
2. 2
   a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer wordnet

Synonyms

All synonyms

arsenicarsenous anhydridearsenous oxideddtpoisonratsbane