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Reaction :: Reaction (n.) An action induced by vital resistance to some other action; depression or exhaustion of vital force consequent on overexertion or overstimulation; heightened activity and overaction succeeding depression or shock.

Protamin :: Protamin (n.) An amorphous nitrogenous substance found in the spermatic fluid of salmon. It is soluble in water, which an alkaline reaction, and unites with acids and metallic bases..

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..

Antiperistasis :: Antiperistasis (n.) Opposition by which the quality opposed asquires strength; resistance or reaction roused by opposition or by the action of an opposite principle or quality.

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..

Barker''s Mill :: Barker's mill () A machine, invented in the 17th century, worked by a form of reaction wheel. The water flows into a vertical tube and gushes from apertures in hollow horizontal arms, causing the machine to revolve on its axis..

Strook :: Strontium (n.) A radioactive isotope of strontium produced by certain nuclear reactions, and constituting one of the prominent harmful components of radioactive fallout from nuclear explosions; also called radiostrontium. It has a half-life of 28 years..

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..

Benzamide :: Benzamide (n.) A transparent crystalline substance, C6H5.CO.NH2, obtained by the action of ammonia upon chloride of benzoyl, as also by several other reactions with benzoyl compounds..

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

Reaction :: Reaction (n.) The force which a body subjected to the action of a force from another body exerts upon the latter body in the opposite direction.

Bromoform :: Bromoform (n.) A colorless liquid, CHBr3, having an agreeable odor and sweetish taste. It is produced by the simultaneous action of bromine and caustic potash upon wood spirit, alcohol, or acetone, as also by certain other reactions. In composition it is the same as chloroform, with the substitution of bromine for chlorine. It is somewhat similar to chloroform in its effects..

Rational :: Rational (a.) Expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulae. See under Formula..

Basic :: Basic (a.) Apparently alkaline, as certain normal salts which exhibit alkaline reactions with test paper..

Preaction :: Preaction (n.) Previous action.

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..

React :: React (v. t.) To act or perform a second time; to do over again; as, to react a play; the same scenes were reacted at Rome..

Water Wheel :: Water wheel () Any wheel for propelling machinery or for other purposes, that is made to rotate by the direct action of water; -- called an overshot wheel when the water is applied at the top, an undershot wheel when at the bottom, a breast wheel when at an intermediate point; other forms are called reaction wheel, vortex wheel, turbine wheel, etc..

Reagent :: Reagent (n.) A substance capable of producing with another a reaction, especially when employed to detect the presence of other bodies; a test..

Acidimetry :: Acidimetry (n.) The measurement of the strength of acids, especially by a chemical process based on the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required..

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