noun \(ˌ)səb-ˈdək-shən\

Definition of SUBDUCTION

:  the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another
sub·duct \(ˌ)səb-ˈdəkt\ verb


French, from Late Latin subduction-, subductio withdrawal, from Latin subducere to withdraw, from sub- + ducere to draw — more at tow
First Known Use: 1970


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