arsenic trioxide

American  

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.

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arsenic trioxide British  

noun

1. Also called: arsenic.  a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As 2 O 3

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Example Sentences

Meanwhile, the Industrial Revolution had democratized arsenic: as a byproduct of smelting iron ore, arsenic trioxide was scraped out of chimneys in vast quantities.

From The New Yorker

And it is full of arsenic trioxide, a compound that is produced by heating arsenopyrite ore, a mineral that has traces of gold.

From Economist

And one compound - arsenic trioxide - has also found a legitimate medical use, as an anti-cancer agent.

From BBC

In the form of arsenic trioxide, it can be used to treat acute promyelocytic leukemia, the book says.

From Washington Post

Oxidation may be effected by the addition to the glass mixture of a substance which gives up oxygen at a high temperature, such as manganese dioxide or arsenic trioxide.

From Project Gutenberg