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oceanic trench

noun

a long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone

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Nearby words

  1. oceania,
  2. oceanian,
  3. oceanic,
  4. oceanic crust,
  5. oceanic ridge,
  6. oceanic whitetip shark,
  7. oceanicity,
  8. oceanid,
  9. oceanids,
  10. oceanity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012