oceanic abyss meaning

• Noun: oceanic abyss
  1. A long steep-sided depression in the ocean floor
     - trench, deep

  Derived forms: oceanic abysses

  Type of: depression, natural depression

• abyss:    Noun: abyss & ...
• oceanic:    Adjective: oceanic ...
• oceanic bird:    Noun: oceanic bird ...