Arsenopyrite
a common mineral, iron arsenic sulfide, FeAsS, occurring in silver-white to steel-gray crystals or masses: an ore of arsenic.
noun
a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS Also called mispickel
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- Arsenous
containing arsenic in the trivalent state, as arsenous chloride, AsCl 3 . of or derived from arsenous acid.
- Arsenous acid
a hypothetical acid, H 3 AsO 3 or HAsO 2 , found only in solution or in the form of its salts. .
- Ars gratia artis
art for art’s sake. noun phrase art for the sake of art Examples The Impressionists’s motto was ‘ars gratia artis’. Word Origin Latin
- Ars longa, vita brevis
art is long, life is short.
- Ars est celare artem
it is art to conceal art; true art conceals the means by which it is achieved. Historical Examples ars est celare artem—It is the perfection of art to conceal art. Dictionary of Quotations from Ancient and Modern, English and Foreign Sources James Wood Here, as in all high art, the old motto is in force, […]