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chain reaction

chain reaction

1 4.1
A series of chemical or nuclear reactions in which one reaction makes the next start
  • noun
  • /tʃeɪn riˈækʃən/
  • Specialized
translation icon : reacción en cadena
  • So you get a chain reaction and the explosion just builds up and up and up.
  • polymerase chain reaction

Examples

  • CONTROL: Well, we have a full-on chain reaction.

  • So all you need is enough people for it to create a chain reaction that's sustainable.

  • U.S. tariffs on steel imports from Russia and China, as well as other nations, created such a chain reaction.

    Academic text (2003)
  • When I cross this wire, it'll start a chain reaction that'll blow that mothership back to the Stone Age.

  • The explosion triggered a chain reaction that destroyed several nearby buildings.

  • The scientist explained how a small spark could cause a chain reaction in the chemical lab.

  • In the movie, the hero's actions initiated a chain reaction that ultimately saved the city.

Synonyms

cascade
vschain reaction
23 5.3

A series of events where one event causes the next

is a chemical or nuclear sequence where reactions produce the next

How Fast

avalanche
36 5.1
galloping domino
  • Informal
9.9
chain reaction
  • Specialized
1 4.1
cascade
23 5.3

Surface Forms

Morphology

chain + reaction

The compound combines 'chain' (a series of linked events) with 'reaction' (a chemical/process response), so the idea of a sequence of reactions where each triggers the next is directly derivable from its parts. This composition is cross-linguistically common (e.g. Spanish 'reacción en cadena') and follows standard noun-noun composition, so a B1 learner who knows both constituents would likely infer the meaning.

Etymology

Chain reaction comes from the image of a chain of events where one reaction makes the next one happen, like a row of falling dominoes. That's why in chemistry one reaction can produce something that starts the next reaction, so the whole process continues.