Reaction
- Noun
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.
- Noun
The force which a body subjected to the action of a force from another body exerts upon the latter body in the opposite direction.
- Noun
Any action in resisting other action or force; counter tendency; movement in a contrary direction; reverse action.
- Noun
Backward tendency or movement after revolution, reform, or great progress in any direction.
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Reaction
Reaction may refer to a response to an action, event, or exposure. Examples:
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International reaction to the 2009 Honduran coup d'etat
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Reaction Motors Rocket Test Facility
Reaction Motors Rocket Test Facility, is located in Franklin Lakes, Bergen County, New Jersey, United States. The facility was built in 1942 and was added to the National Register of Historic Places on June 6, 1979.
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Reaction Motors XLR11
The XLR11, company designation RMI 6000C4, was the first liquid-propellant rocket engine developed in the United States for use in aircraft. It was designed and built by Reaction Motors Inc., and used ethyl alcohol and liquid oxygen as propellants to generate a maximum thrust of 6,000 lbf (27 kN). Each of the four combustion chambers produced 1,500 lbf (6.7 kN) of thrust. The engine was not throttleable but each chamber could be turned on and off individually.
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Abelin reaction
The Abelin reaction is a qualitative reaction for demonstrating the presence of arsphenamine and neoarsphenamine in blood and urine.
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Composite reaction texturing
Composite reaction texturing is a process invented at the University of Cambridge by Prof. J.E. Evetts and Dr. B.A. Glowacki by which ceramic Bi2Sr2CaCu2O8+x superconductor with induced microstructural texture can be used for high current applications such as current leads or resistive fault current limiter.
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Bechamp reaction
In organic synthesis the Bechamp reaction, first reported in 1863 by Antoine Béchamp, is used for producing arsonic acids from activated aromatic rings; for example the synthesis of arsanilic acid from aniline.
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Tipson–Cohen reaction
The Tipson–Cohen reaction is a name reaction first discovered by Stuart Tipson and Alex Cohen at the National Bureau of Standards in Washington D.C. The Tipson–Cohen reaction occurs when two neighboring secondary sulfonyloxy groups in a sugar molecule are treated with zinc dust (Zn) and sodium iodide (NaI) in a refluxing solvent such as N,N-dimethylformamide (DMF) to give an unsaturated carbohydrate.
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Combination reaction
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product). Such reactions may be represented by equations of the following form: X + Y → XY. The combination of two or more elements and form one compound is called combination reaction. Combination reactions can involve different types of reactants: