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“abyssal plains”
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)