arsenic trioxide

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ar·se·nic trioxide

 (är′sə-nĭk)
n.
A poisonous, white amorphous powder, As2O3, used in insecticides, rat poisons, weed killers, pigments, and preservatives for hides and wood.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

arsenic trioxide

n
(Elements & Compounds) 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 and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ar′senic triox′ide


n.
a white, tasteless, poisonous powder, As2O3, used chiefly in the manufacture of pigments and glass and as an insecticide or weed-killer.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.arsenic trioxide - a white powdered poisonous trioxide of arsenicarsenic trioxide - a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
trioxide - an oxide containing three atoms of oxygen in the molecule
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References in periodicals archive ?
In the first find of warikahnite in the E9 pillar, 31st level, it was associated with "pale to emerald-green cuprian adamite, white koritnigite, blue stranskiite, pale sea-green crystals of helmutwinklerite, and white corroded crystals of claudetite, ludlockite, tsumcorite and lavendulan.
Other minerals in the deposit are: pyrite, miargyrite, argentian tetrahedrite, gold, lollingite, claudetite and kankite.