Different meanings are inscribed on the concept of reaction. The most common and well known is the one that says that the reaction is the consequent answer that any living being given against a stimulus that receives. But also and on to other things, a reaction may refer to concrete action a thing or a person deployed, firmly opposing another. For example, the reaction is a behavior that occurs very frequently in the world of politics and which will be shown as a counterpart of the established order of things. Many times, the innovative ideas proposed a substantial change in the political life of any society or community imply a reaction, which can usually be embodied by a contrary to the ruling political party and who professes a change with respect to this or their own ruled that a particular measure or policy which is considered counterproductive, rise up and react against this. Traditionally, and since the French Revolution took place, was used the term reactionary to talk about all those positions or ideas precisely opposed to the revolution. Then, with the passing of time, began to apply the term to any political stance that not agrees with the officer. On the other hand and as noted above, the reaction might be against something, as it can be the case of a drug, to this situation, in the medical fields, is called adverse reaction to a drug and will involve any response that is harmful to a medicine that was swallowed in order to diagnose, treat, or prevent any disease, but which meant of course at any time an intention of malicious so happen. Meanwhile, in the field of chemistry called reaction to that process through which two substances combine to give rise to a third. For example, the reaction that takes place between the caustic soda and hydrochloric acid common salt that you, I and everyone use to flavor our foods we obtain final result.
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