a long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone
From the Trenches: Words of World War IRead more in this article about some frequently asked questions and fun facts related to our definitions.
cake by the oceanRead more in this article about some frequently asked questions and fun facts related to our definitions.
- oceanic crust,
- oceanic ridge,
- oceanic whitetip shark,
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