chain reaction

noun

1
a
: a series of events so related to each other that each one initiates the next
b
: a number of events triggered by the same initial event
2
: a self-sustaining chemical or nuclear reaction yielding energy or products that cause further reactions of the same kind
chain-react intransitive verb

Examples of chain reaction in a Sentence

Increased oil prices could trigger a chain reaction in the economy.
Recent Examples on the Web Something — or a chain reaction of somethings, most of them presumably climate-related — has spread across the surface of the Earth, destabilizing human civilization and making our planet unlivable. David Ehrlich, IndieWire, 31 Aug. 2024 The outage, which apparently stemmed from a faulty software update from security provider CrowdStrike, set off a chain reaction that took down PCs and servers at airlines, TV stations, banks, hospitals, and countless other organizations. Alexei Oreskovic, Fortune, 19 July 2024 Nath suspects the wide mix of autoantibodies seen in patients points to some earlier chain reaction in the immune system, perhaps from fragments of lingering virus. Byjennifer Couzin-Frankel, science.org, 21 June 2024 According to experts, battery fires are tougher to extinguish than conventional ones due to the thermal runaway effect — a chain reaction within battery cells. Afp, Fortune Asia, 13 Aug. 2024 See all Example Sentences for chain reaction 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chain reaction.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1892, in the meaning defined at sense 1a

Time Traveler
The first known use of chain reaction was in 1892

Dictionary Entries Near chain reaction

Cite this Entry

“Chain reaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chain%20reaction. Accessed 12 Sep. 2024.

Kids Definition

chain reaction

noun
1
: a series of events so related to each other that each one sets the next one going
2
: a chemical or nuclear reaction producing energy or products that cause further reactions of the same kind

Medical Definition

chain reaction

noun
: a self-sustaining chemical or nuclear reaction yielding energy or products that cause further reactions of the same kind

More from Merriam-Webster on chain reaction

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