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oxide
o x i d e hex:#111;#120;#105;#100;#101;
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- Oxide - n. - A binary compound of oxygen with an atom or radical, or a compound which is regarded as binary; as, iron oxide, ethyl oxide, nitrogen oxide, etc.
- Strontia - n. - An earth of a white color resembling lime in appearance, and baryta in many of its properties. It is an oxide of the metal strontium.
- Pacos - n. - An earthy-looking ore, consisting of brown oxide of iron with minute particles of native silver.
- Tetroxide - n. - An oxide having four atoms of oxygen in the molecule; a quadroxide; as, osmium tetroxide, OsO/.
- Goethite - n. - A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.
- Ochre - n. - A metallic oxide occurring in earthy form; as, tungstic ocher or tungstite.
- Psilomelane - n. - A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.
- Graphotype - n. - A process for producing a design upon a surface in relief so that it can be printed from. Prepared chalk or oxide of zinc is pressed upon a smooth plate by a hydraulic press, and the design is drawn upon this in a peculiar ink which hardens the surface wherever it is applied. The surface is then carefully rubbed or brushed, leaving the lines in relief.
- Metal - n. - An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmetals, or metalloids. No sharp line can be drawn between the metals and nonmetals, and certain elements partake of both acid and basic qualities, as chromium, manganese, bismuth, etc.
- Holmia - n. - An oxide of holmium.
- Cadmia - n. - An oxide of zinc which collects on the sides of furnaces where zinc is sublimed. Formerly applied to the mineral calamine.
- Wadd - n. - An earthy oxide of manganese, or mixture of different oxides and water, with some oxide of iron, and often silica, alumina, lime, or baryta; black ocher. There are several varieties.
- Giallolino - n. - A term variously employed by early writers on art, though commonly designating the yellow oxide of lead, or massicot.
- Iron - n. - The most common and most useful metallic element, being of almost universal occurrence, usually in the form of an oxide (as hematite, magnetite, etc.), or a hydrous oxide (as limonite, turgite, etc.). It is reduced on an enormous scale in three principal forms; viz., cast iron, steel, and wrought iron. Iron usually appears dark brown, from oxidation or impurity, but when pure, or on a fresh surface, is a gray or white metal. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents. Symbol Fe (Latin Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances.
- Maltose - n. - A crystalline sugar formed from starch by the action of distance of malt, and the amylolytic ferment of saliva and pancreatic juice. It resembles dextrose, but rotates the plane of polarized light further to the right and possesses a lower cupric oxide reducing power.
- Clinker - n. - A scale of oxide of iron, formed in forging.
- Colcothar - n. - Polishing rouge; a reddish brown oxide of iron, used in polishing glass, and also as a pigment; -- called also crocus Martis.
- Suboxide - n. - An oxide containing a relatively small amount of oxygen, and less than the normal proportion; as, potassium suboxide, K4O.
- Anhydride - n. - An oxide of a nonmetallic body or an organic radical, capable of forming an acid by uniting with the elements of water; -- so called because it may be formed from an acid by the abstraction of water.
- Chromite - n. - A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.
- Ether - n. - Any similar oxide of hydrocarbon radicals; as, amyl ether; valeric ether.
- Braunite - n. - A native oxide of manganese, of dark brownish black color. It was named from a Mr. Braun of Gotha.
- Peroxide - n. - An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. Per-, 2.
- Glucinum - n. - A rare metallic element, of a silver white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always combined, usually with silica or alumina, or both; as in the minerals phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its oxide glucina, which was known long before the element was isolated. Symbol Gl. Atomic weight 9.1. Called also beryllium.
- Dioxide - n. - An oxide containing two atoms of oxygen in each molecule; binoxide.
- Bole - n. - Any one of several varieties of friable earthy clay, usually colored more or less strongly red by oxide of iron, and used to color and adulterate various substances. It was formerly used in medicine. It is composed essentially of hydrous silicates of alumina, or more rarely of magnesia. See Clay, and Terra alba.