oceanbottom
nounUK /ˈəʊʃənˌbɒtəm/
US /ˈoʊʃənˌbɑːtəm/
The oceanbottom is the ground at the very bottom of the sea.
Crabs and starfish live on the oceanbottom.
OTHER MEANINGS
2. The lowest layer of the ocean, far below the surface.
Sunlight never reaches the deep oceanbottom.
3. The ground under any large body of water.
The diver touched the oceanbottom and looked around.
4. A place where things settle and rest at the base of the sea.
Old shells collect on the oceanbottom.