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 subduction zone has produced some of the largest earthquakes ever recorded, such as the 1964 Alaska earthquake that measured as a 9.2 magnitude, according to the Alaska Earthquake Center. Antonio Pequeño Iv, Forbes.com, 16 July 2025 With the system’s completion last month, Japan has become the first country to achieve direct, real-time monitoring of entire subduction zones—adding minutes and seconds to evacuate people and brace crucial infrastructure for impact. Deni Ellis Béchard, Scientific American, 9 July 2025 The earthquake started on the Great Sumatran Fault, a fault system linked to the subduction of the Indian Plate underneath the Sunda Plate. David Bressan, Forbes, 26 Dec. 2024 The new study suggests, however, that around coronae, something quite similar to subduction could be happening. Elise Cutts, Scientific American, 13 May 2025 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

Browse Nearby Words

Cite this Entry

“Subduction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subduction. Accessed 21 Jul. 2025.

More from Merriam-Webster on subduction

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!