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arsenic trioxide

noun

, Chemistry.
  1. a white, tasteless, amorphous, slightly water-soluble, poisonous powder, As 2 O 3 , used chiefly in the manufacture of pigments and glass and as an insecticide or weed-killer; arsenous acid.


arsenic trioxide

noun

  1. a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As 2 O 3 Also calledarsenic
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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arsenic trichloridearsenic trisulfide