Definition of subduct in English:

subduct

verb

[with object]Geology
be subducted
  • (of a plate of the earth’s crust) undergo subduction.

    ‘oceanic crust is subducted underneath continental tectonic plates’
    no object ‘the Pacific plate was subducting to the south-west beneath the Australian plate’

Pronunciation

subduct

/ˌsʌbˈdʌkt/