English definition of Arsenic

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Definition of arsenic

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Arsenic (n.) One of the elements, a solid substance resembling a metal in its physical properties, but in its chemical relations ranking with the nonmetals. It is of a steel-gray color and brilliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356¡ Fahrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are two of its sulphur compounds, the first of which is the true arsenicum of

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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)..

Geocronite :: Geocronite (n.) A lead-gray or grayish blue mineral with a metallic luster, consisting of sulphur, antimony, and lead, with a small proportion of arsenic..

Pyroarsenic :: Pyroarsenic (a.) Pertaining to or designating, an acid of arsenic analogous to pyrophosphoric acid..

Cobalt :: Cobalt (n.) A commercial name of a crude arsenic used as fly poison.

Arsenicating :: Arsenicating (p. pr. & vb. n.) of Arsenicat.

Sandarac :: Sandarac (n.) Realgar; red sulphide of arsenic.

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

Sulphantimonious :: Sulphantimonic (a.) Of, pertaining to, or designating, a hypothetical sulphacid of antimony (called also thioantimonic acid) analogous to sulpharsenic acid..

Ustulation :: Ustulation (n.) The operation of expelling one substance from another by heat, as sulphur or arsenic from ores, in a muffle..

Arsenic :: Arsenic (n.) Arsenious oxide or arsenious anhydride; -- called also arsenious acid, white arsenic, and ratsbane..

Zarnich :: Zarnich (n.) Native sulphide of arsenic, including sandarach, or realgar, and orpiment..

Cobaltite :: Cobaltite (n.) A mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt..

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..

Arsenicate :: Arsenicate (v. t.) To combine with arsenic; to treat or impregnate with arsenic.

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

Arsenic :: Arsenic (a.) Pertaining to, or derived from, arsenic; -- said of those compounds of arsenic in which this element has its highest equivalence; as, arsenic acid..

Tennantite :: Tennantite (n.) A blackish lead-gray mineral, closely related to tetrahedrite. It is essentially a sulphide of arsenic and copper..

Arseniureted :: Arseniureted (a.) Combined with arsenic; -- said some elementary substances or radicals; as, arseniureted hydrogen..

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

Nickel :: Nickel (n.) A bright silver-white metallic element. It is of the iron group, and is hard, malleable, and ductile. It occurs combined with sulphur in millerite, with arsenic in the mineral niccolite, and with arsenic and sulphur in nickel glance. Symbol Ni. Atomic weight 58.6..