abyssal plain

Noun

Meaning

abyssal plain (plural abyssal plains)

(geography) A large expanse of very flat and smooth ocean floor, usually found at depths of 4,600 to 5,500 meters (15,000 to 18,000 feet).

Source: en.wiktionary.org

Close letter words and terms

abyssal depths abyssal descent abyssal fish abyssal plain geology abyssal rock abyssal zone