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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.
Also called arsenic.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for arsenic trioxide
  • Nearly all domestic imports were in compound form, primarily as arsenic trioxide, although some arsenic metal was also imported.
British Dictionary definitions for arsenic trioxide

arsenic trioxide

noun
1.
a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As2O3 Also called arsenic
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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