subduction

noun

sub·​duc·​tion (ˌ)səb-ˈdək-shən How to pronounce subduction (audio)
: the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another
subduct verb

Examples of subduction in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The latter temblor occurred in a subduction zone; such regions are capable of producing the strongest earthquakes possible. Jackie Flynn Mogensen, Scientific American, 8 June 2026 The breakup of Columbia aligns with the first signs of lower-temperature subduction. Scott K. Johnson, ArsTechnica, 26 May 2026 Unlike the subduction zones found in Chile and Japan, Cascadia is relatively silent. Julia Jacobo, ABC News, 14 May 2026 The biggest and most destructive earthquakes on Earth happen along subduction zones, where one tectonic plate dives beneath another. Yinchu Li, The Conversation, 4 May 2026 See All Example Sentences for subduction

Word History

Etymology

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

First Known Use

1970, in the meaning defined above

Time Traveler
The first known use of subduction was in 1970

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Cite this Entry

“Subduction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subduction. Accessed 16 Jun. 2026.

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