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Mutual action and reaction.

Specifically, the reaction or rebounding of a firearm when discharged. Recoil dynamometer (Gunnery), an instrument for measuring the force of the recoil of a firearm. -- Recoil escapement See the Note under Escapement.

Produced in reaction, in resistance, or in return.

A flowing back, as the return of a fluid; ebb; reaction; as, the flux and reflux of the tides. All from me Shall with a fierce reflux on me redound. Milton.

A reacting jolt or shock; a rebound or recoil. [R.] These inward rejolts and recoilings of the mind. South.

To counteract, as a force, by inertia or reaction.

A sudden reaction; a sudden and complete change; -- applied to the feelings. A sudden and violent revulsion of feeling, both in the Parliament and the country, followed. Macaulay.

y motion, as of rolling; as, a river rolls its waters to the ocean. The flood of Catholic reaction was rolled over Europe. J. A. Symonds.

Aërated salt; a white crystalline substance having an alkaline taste and reaction, consisting of sodium bicarbonate (see under Sodium.) It is lagerly used in cooking, with sour milk (lactic acid) or cream of tartar as a substitute for yeast. It is also an ingridient of most baking powders, and is used in the preparatio…

lphate is an acid salt. (b) A salt, whatever its constitution, which merely gives an acid reaction; thus, copper sulphate, which is composed of a strong acid united with a weak base, is an acid salt in this sense, though theoretically it is a neutral salt. -- Alkaline salt (Chem.), a salt which gives an alkaline react…

ion, or the coming after in time, without asserting or implying causative energy; as, the reactions of chemical agents may be conceived as merely invariable sequences.

ia are complex aggregations of molecules, which are themselves complex. Complex molecules react with one another through certain of their side chains, but only when these side chains have a definite correspondence in structure (this account for the specific action of antitoxins).

ol Sr. Atomic weight 87.3. 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.

hydrogen and oxygen; hence, specifically, the building up of complex compounds by special reactions, whereby their component radicals are so grouped that the resulting substances are identical in every respect with the natural articles when such occur; thus, artificial alcohol, urea, indigo blue, alizarin, etc., are ma…

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 sulpha…

A colorless crystalline substance prepared by the reaction of carbolic acid with bromine.

ving a series of curved floats or buckets, against which the water acts by its impulse or reaction in flowing either outward from a central chamber, inward from an external casing, or from above downward, etc.; -- also called turbine wheel.

when at the bottom, a breast wheel when at an intermediate point; other forms are called reaction wheel, vortex wheel, turbine wheel, etc.

A firework which, while burning, is caused to revolve on an axis by the reaction of the escaping gases.

otein; showing the characters of xanthoprotein; as, xanthoproteic acid; the xanthoproteic reaction for albumin.