Definition of subduction in English:

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Pronunciation: /səbˈdʌkʃ(ə)n/


[mass noun] Geology
The sideways and downward movement of the edge of a plate of the earth’s crust into the mantle beneath another plate: [as modifier]: subduction zone
More example sentences
  • There are two possible tectonic settings for the deep subduction of Indian Plate continental crust in the early Tertiary.
  • The Spontang ophiolitc, for example, is associated with partial subduction of buoyant continental crust.
  • These extensional faults were reactivated as reverse faults during Neogene compression associated with subduction beneath the North Island.



Example sentences
  • In the early Himalayan case described here, the driving force would have been slab pull with Indian Plate continental crust and lithospheric mantle being subducted at a steep subduction angle.
  • What is the relationship at depth between the inboard strike-slip boundary and the slab subducted at the outboard subduction zone?
  • Distinct differences in the seismic reflection waveforms are expected from the subduction megathrust as sediments subduct through significant sediment-to-rock transitions.


1970s: via French from Latin subductio(n-), from subduct- 'drawn from below', from the verb subducere.

For editors and proofreaders

Line breaks: sub|duc¦tion

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