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Reaction :: Reaction (n.) The mutual or reciprocal action of chemical agents upon each other, or the action upon such chemical agents of some form of energy, as heat, light, or electricity, resulting in a chemical change in one or more of these agents, with the production of new compounds or the manifestation of distinctive characters. See Blowpipe reaction, Flame reaction, under Blowpipe, and Flame..

Passive :: Passive (a.) Designating certain morbid conditions, as hemorrhage or dropsy, characterized by relaxation of the vessels and tissues, with deficient vitality and lack of reaction in the affected tissues..

Saleratus :: Saleratus (n.) Aerated salt; a white crystalline substance having an alkaline taste and reaction, consisting of sodium bicarbonate (see under Sodium.) It is largely used in cooking, with sour milk (lactic acid) or cream of tartar as a substitute for yeast. It is also an ingredient of most baking powders, and is used in the preparation of effervescing drinks..

Preact :: Preact (v. t.) To act beforehand; to perform previously.

Reaction :: Reaction (n.) Backward tendency or movement after revolution, reform, or great progress in any direction..

Xanthoproteic :: Xanthoproteic (a.) Pertaining to, or derived from, xanthoprotein; showing the characters of xanthoprotein; as, xanthoproteic acid; the xanthoproteic reaction for albumin..

Reactionary :: Reactionary (n.) One who favors reaction, or seeks to undo political progress or revolution..

Magnesia :: Magnesia (n.) A light earthy white substance, consisting of magnesium oxide, and obtained by heating magnesium hydrate or carbonate, or by burning magnesium. It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium..

Coagulate :: Coagulate (v. t.) To cause (a liquid) to change into a curdlike or semisolid state, not by evaporation but by some kind of chemical reaction; to curdle; as, rennet coagulates milk; heat coagulates the white of an egg..

Reactionaries :: Reactionaries (pl. ) of Reactionar.

Diazotize :: Diazotize (v. t.) To subject to such reactions or processes that diazo compounds, or their derivatives, shall be produced by chemical exchange or substitution..

Reaction :: Reaction (n.) Any action in resisting other action or force; counter tendency; movement in a contrary direction; reverse action.

React :: React (v. i.) To return an impulse or impression; to resist the action of another body by an opposite force; as, every body reacts on the body that impels it from its natural state..

Bile :: Bile (n.) A yellow, or greenish, viscid fluid, usually alkaline in reaction, secreted by the liver. It passes into the intestines, where it aids in the digestive process. Its characteristic constituents are the bile salts, and coloring matters..

Reactionist :: Reactionist (n.) A reactionary.

Abutment :: Abutment (n.) A fixed point or surface from which resistance or reaction is obtained, as the cylinder head of a steam engine, the fulcrum of a lever, etc..

Recoil :: Recoil (n.) Specifically, the reaction or rebounding of a firearm when discharged..

Lactucin :: Lactucin (n.) A white, crystalline substance, having a bitter taste and a neutral reaction, and forming one of the essential ingredients of lactucarium..

Test :: Test (n.) A reaction employed to recognize or distinguish any particular substance or constituent of a compound, as the production of some characteristic precipitate; also, the reagent employed to produce such reaction; thus, the ordinary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt..

Earth :: Earth (n.) A similar oxide, having a slight alkaline reaction, as lime, magnesia, strontia, baryta..

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