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.

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

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.
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
References in periodicals archive ?
It occurs naturally in inorganic and organic forms, such as arsenic acid (H3AsO4) and arsenous acid (H3AsO3) and their dissociation derivatives (H2AsO4 -, HAsO4 2-, H2AsO3 - and HAsO3 2-)arsenites, arsenates, monomethylarsenic acid (MMAA), and dimethylarsenic acid (DMAA) [2].
2008) because arsenous acid (the predominant form of arsenic in flooded rice paddies) is indistinguishable from silicic acid to the rice plant.
Thus, our definition of total arsenic included arsenous acid, arsenic acid, MMA, and DMA, consistent with previous studies (e.