arsenic trioxide meaning

UK US

arsenic trioxide (noun): a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer.

Definition of arsenic trioxide

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

    Synonyms: arsenic, arsenous anhydride, arsenous oxide, white arsenic, ratsbane

    Type of: trioxide

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