Word
subduction
Phoneticssub·duc·tion
UK/sʌbdˈʌkʃən/
Definition
n. the process where one part of the Earth's crust moves under another part and sinks into the planet. This often happens when two tectonic plates meet.
n. the geological process by which one tectonic plate moves under another and is forced into the mantle. In mathematics, it refers to the operation of subtracting one number from another.
Examples
“The earthquake was caused by the subduction of the oceanic plate.”
“Geologists study subduction zones to better understand how the Earth's crust changes over millions of years.”
“The intense pressure generated by the subduction of the denser oceanic plate eventually leads to the melting of the mantle, resulting in volcanic activity along the continental margin.”
Examples
simple
“The earthquake was caused by the subduction of the oceanic plate.”
contextual
“Geologists study subduction zones to better understand how the Earth's crust changes over millions of years.”
complex
“The intense pressure generated by the subduction of the denser oceanic plate eventually leads to the melting of the mantle, resulting in volcanic activity along the continental margin.”
Real-World Examples
“The Juan de Fuca plate is being forced beneath the North American plate, creating the Cascadia subduction zone along the Pacific Northwest.” “Island arcs, chains of volcanoes that develop above subduction zones where one oceanic plate descends beneath another, are often unusually rich in gold.” “There is also considerable seismic activity around the Pyrenees, given the fact that this is the edge of where one plate has slid beneath the other, a process seismologists refer to as subduction.” Etymology
From Latin subductiō, from subdūcere (“to draw from under or below”). Equivalent to subduct + -ion or subduce + -tion.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domains
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englishreference.com/q/subduction