White arsenic Meaning, Definition & Usage

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

WordNet


Definitions
  1. (Chem.), arsenious oxide, As2O3, a substance of a white color, and vitreous adamantine luster, having an astringent, sweetish taste. It is a deadly poison.

Webster 1913