subduction

noun
sub·​duc·​tion | \ (ˌ)səb-ˈdək-shən How to pronounce subduction (audio) \

Definition of subduction

: the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another

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Other Words from subduction

subduct \ (ˌ)səb-​ˈdəkt How to pronounce subduction (audio) \ verb

Examples of subduction in a Sentence

Recent Examples on the Web Meanwhile, cooling slabs of crust sink in subduction zones to the bottom of the mantle. Jenny Wu, Science | AAAS, "What might Earth’s next supercontinent look like? New study provides clues," 21 Jan. 2021 Extensive parts of the city sit in the tsunami inundation zone in the case of a major Cascadia subduction zone earthquake. oregonlive, "‘Panic’ in Depoe Bay after tsunami sirens activated to warn of high winds," 3 Jan. 2021 Or maybe the subduction zones, typically as long as the midocean ridges, shrunk in length, reducing their pull. Paul Voosen, Science | AAAS, "Slowdown in plate tectonics may have led to Earth’s ice sheets," 22 Dec. 2020 And to bring the two ideas together, the entire Himalayan range was formed by the subduction—the pushing under—of a previously major and separate tectonic plate. Caroline Delbert, Popular Mechanics, "Why Mt. Everest and the Alps Are Weirdly Getting Taller," 9 Dec. 2020 The plate under the water, made of dense oceanic crust, plunged beneath the southern edge of the more buoyant rocks that make up the Eurasian continental plate, creating a feature known as a subduction zone. Science, "Why Mount Everest keeps changing its height," 8 Dec. 2020 This area is the location of most of Earth's subduction zones, where oceanic plates slide under the lighter continental plates. Fox News, "Earthquake swarm in California as 4 tremors shake Milpitas for second time in 3 days," 30 Sep. 2020 This finding can be explained only if there were two subduction zones pulling India rapidly toward Eurasia, rather than just one. Craig Robert Martin, The Conversation, "Magnetism of Himalayan rocks reveals the mountains’ complex tectonic history," 2 Nov. 2020 This area is the location of most of Earth's subduction zones, where oceanic plates slide under the lighter continental plates. Fox News, "Earthquake swarm in California as 4 tremors shake Milpitas for second time in 3 days," 30 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'subduction.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of subduction

1970, in the meaning defined above

History and Etymology for subduction

French, from Late Latin subduction-, subductio withdrawal, from Latin subducere to withdraw, from sub- + ducere to draw — more at tow entry 1

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Time Traveler for subduction

Time Traveler

The first known use of subduction was in 1970

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Statistics for subduction

Last Updated

31 Jan 2021

Cite this Entry

“Subduction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subduction. Accessed 27 Feb. 2021.

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More from Merriam-Webster on subduction

Nglish: Translation of subduction for Spanish Speakers

Britannica.com: Encyclopedia article about subduction

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