Definition of subduction in English:

subduction

noun

Geology
  • [mass noun] 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’
    • ‘These rocks are interpreted as a forearc succession that developed in association with north-directed subduction beneath the Lhasa terrane.’
    • ‘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.’
    • ‘Nevertheless, subduction of Africa beneath Iberia starting in the Late Eocene has been proposed.’
    • ‘These extensional faults were reactivated as reverse faults during Neogene compression associated with subduction beneath the North Island.’

Origin

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

Pronunciation:

subduction

/səbˈdʌkʃ(ə)n/