You searched for: “abyssal plain
abyssal plain (s) (noun), abyssal plains (pl)
A flat, sediment-covered area in the deep ocean basin, usually at a depth between 3,000 and 5,000 meters: Several sunken ships have been mired in the abyssal plains of the Atlantic Ocean.
This entry is located in the following units: abysso-, abyss-, abys- (page 1) -al; -ial, -eal (page 4)