obduction

== English == === Etymology === Latin obductio; see Latin ob, ductio. === Noun === obduction (countable and uncountable, plural obductions) (obsolete) The act of drawing or laying over, as a covering. (largely obsolete) An autopsy. (geology) The overthrusting of continental crust by oceanic crust or rocks from the mantle, such that the oceanic crust is thrust onto the continental crust, as occurs at a convergent plate boundary when the continental crust is caught in a subduction zone. ==== Coordinate terms ==== subduction ==== Related terms ==== === References === “obduction”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.