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Histohaematin :: Histohaematin (n.) One of a class of respiratory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction..

Conversion :: Conversion (n.) A change or reduction of the form or value of a proposition; as, the conversion of equations; the conversion of proportions..

Refractory :: Refractory (a.) Resisting ordinary treatment; difficult of fusion, reduction, or the like; -- said especially of metals and the like, which do not readily yield to heat, or to the hammer; as, a refractory ore..

Aurichalcite :: Aurichalcite (n.) A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction..

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..

Hydrazine :: Hydrazine (n.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc..

Reduction :: Reduction (n.) The act or process of reducing. See Reduce, v. t., 6. and To reduce an equation, To reduce an expression, under Reduce, v. t..

Manganese :: Manganese (n.) An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8..

Indolin :: Indolin (n.) A dark resinous substance, polymeric with indol, and obtained by the reduction of indigo white..

Reduction :: Reduction (v. t.) The preparation of the facts and measurements of observations in order to deduce a general result.

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

Saccharone :: Saccharone (n.) An oily liquid, C6H10O2, obtained by the reduction of saccharin..

Face :: Face (n.) The exact amount expressed on a bill, note, bond, or other mercantile paper, without any addition for interest or reduction for discount..

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

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

Scoria :: Scoria (n.) The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross..

Trance :: Trance (n.) A condition, often simulating death, in which there is a total suspension of the power of voluntary movement, with abolition of all evidences of mental activity and the reduction to a minimum of all the vital functions so that the patient lies still and apparently unconscious of surrounding objects, while the pulsation of the heart and the breathing, although still present, are almost or altogether imperceptible..

Transmutation :: Transmutation (n.) The change or reduction of one figure or body into another of the same area or solidity, but of a different form, as of a triangle into a square..

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

Depolarization :: Depolarization (n.) The act of depriving of polarity, or the result of such action; reduction to an unpolarized condition..

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