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Orpiment :: Orpiment (n.) Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing..

Glaucodot :: Glaucodot (n.) A metallic mineral having a grayish tin-white color, and containing cobalt and iron, with sulphur and arsenic..

Ullmannite :: Ullmannite (n.) A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel..

Arsenide :: Arsenide (n.) A compound of arsenic with a metal, or positive element or radical; -- formerly called arseniuret..

Arsenopyrite :: Arsenopyrite (n.) A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel..

Ratsbane :: Ratsbane (n.) Rat poison; white arsenic.

Arsenicism :: Arsenicism (n.) A diseased condition produced by slow poisoning with arsenic.

Mundic :: Mundic (n.) Iron pyrites, or arsenical pyrites; -- so called by the Cornish miners..

Semimetal :: Semimetal (n.) An element possessing metallic properties in an inferior degree and not malleable, as arsenic, antimony, bismuth, molybdenum, uranium, etc..

Arsenious :: Arsenious (a.) Pertaining to, or derived from, arsenic, when having an equivalence next lower than the highest; as, arsenious acid..

Tombac :: Tombac (n.) An alloy of copper and zinc, resembling brass, and containing about 84 per cent of copper; -- called also German, / Dutch, brass. It is very malleable and ductile, and when beaten into thin leaves is sometimes called Dutch metal. The addition of arsenic makes white tombac..

Binarseniate :: Binarseniate (n.) A salt having two equivalents of arsenic acid to one of the base.

Cacodyl :: Cacodyl (n.) Alkarsin; a colorless, poisonous, arsenical liquid, As2(CH3)4, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines..

Arsine :: Arsine (n.) A compound of arsenic and hydrogen, AsH3, a colorless and exceedingly poisonous gas, having an odor like garlic; arseniureted hydrogen..

Sesquisulphide :: Sesquisulphide (n.) A sulphide, analogous to a sesquioxide, containing three atoms of sulphur to two of the other ingredient; -- formerly called also sesquisulphuret; as, orpiment, As2S3 is arsenic sesquisulphide..

Silver :: Silver (n.) A soft white metallic element, sonorous, ductile, very malleable, and capable of a high degree of polish. It is found native, and also combined with sulphur, arsenic, antimony, chlorine, etc., in the minerals argentite, proustite, pyrargyrite, ceragyrite, etc. Silver is one of the noble metals, so-called, not being easily oxidized, and is used for coin, jewelry, plate, and a great variety of articles. Symbol Ag (Argentum). Atomic weight 107.7. Specific gravity 10.5..

Tetratomic :: Tetratomic (a.) Consisting of four atoms; having four atoms in the molecule, as phosphorus and arsenic..

Ore :: Ore (n.) The native form of a metal, whether free and uncombined, as gold, copper, etc., or combined, as iron, lead, etc. Usually the ores contain the metals combined with oxygen, sulphur, arsenic, etc. (called mineralizers)..

Sublimed :: Sublime (v. i.) To pass off in vapor, with immediate condensation; specifically, to evaporate or volatilize from the solid state without apparent melting; -- said of those substances, like arsenic, benzoic acid, etc., which do not exhibit a liquid form on heating, except under increased pressure..

Sulphamate :: Sulphacid (n.) An acid in which, to a greater or less extent, sulphur plays a part analogous to that of oxygen in an oxyacid; thus, thiosulphuric and sulpharsenic acids are sulphacids; -- called also sulphoacid. See the Note under Acid, n., 2..

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