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Dioxindol :: Dioxindol (n.) A white, crystalline, nitrogenous substance obtained by the reduction of isatin. It is a member of the indol series; -- hence its name..

Hydroquinone :: Hydroquinone (n.) A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene..

Gas :: Gas (n.) An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aeriform state..

Normalization :: Normalization (n.) Reduction to a standard or normal state.

Hydr- :: Hydr- () A combining form of hydrogen, indicating hydrogen as an ingredient, as hydrochloric; or a reduction product obtained by hydrogen, as hydroquinone..

Reduction :: Reduction (v. t.) The bringing of a syllogism in one of the so-called imperfect modes into a mode in the first figure.

Hydroxylamine :: Hydroxylamine (n.) A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent..

Reconciliation :: Reconciliation (n.) Reduction to congruence or consistency; removal of inconsistency; harmony.

Greillade :: Greillade (n.) Iron ore in coarse powder, prepared for reduction by the Catalan process..

Nicotidine :: Nicotidine (n.) A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group..

Diisatogen :: Diisatogen (n.) A red crystalline nitrogenous substance or artificial production, which by reduction passes directly to indigo..

Degradation :: Degradation (n.) Diminution or reduction of strength, efficacy, or value; degeneration; deterioration..

Pyrroline :: Pyrroline (n.) A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrol..

Neck :: Neck (n.) A reduction in size near the end of an object, formed by a groove around it; as, a neck forming the journal of a shaft..

Hydrosulphurous :: Hydrosulphurous (a.) Pertaining to, or designating, an acid obtained by the reduction of sulphurous acid. See Hyposulphurous acid, under Hyposulphurous..

Hydrometallurgical :: Hydrometallurgical (a.) Of or pertaining to hydrometallurgy; involving the use of liquid reagents in the treatment or reduction of ores.

Glycoluril :: Glycoluril (n.) A white, crystalline, nitrogenous substance, obtained by the reduction of allantoin..

Reduction :: Reduction (n.) The act of reducing, or state of being reduced; conversion to a given state or condition; diminution; conquest; as, the reduction of a body to powder; the reduction of things to order; the reduction of the expenses of government; the reduction of a rebellious province..

Mercury :: Mercury (n.) A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, /..

Systematist :: Systematism (n.) The reduction of facts or principles to a system.

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