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.
 
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"Ratsbane" Quotes from Famous Books — The Poetical Works of Oliver Wendell Holmes, Complete • Oliver Wendell Holmes, Sr. — Master Skylark • John Bennett  | 
Words linked to "Ratsbane" :   trioxide  | 
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