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Chain re·ac·tion

/ˌCHān rēˈakSHən/

noun
- 1. a chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
- ▪ the self-sustaining fission reaction spread by neutrons which occurs in nuclear reactors and bombs.
- ▪ a series of events, each caused by the previous one: "an article in one publication sets off a chain reaction in the media"
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Chain reaction
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Sequence of reactions where a reactive product or by-product causes additional reactions to take place
A chain reaction is a sequence of reactions where a reactive product or by-product causes additional reactions to take place. In a chain reaction, positive feedback leads to a self-amplifying chain of events. Chain reactions are one way that systems which are not in thermodynamic equilibrium can release energy or increase entropy in order to reach a state of higher entropy. Wikipedia
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