Worldwide zone of deep ocean waters, about 3,000–13,000 ft (1,000–4,000 m) below the surface.
It is inhabited by a wide variety of marine forms, including eels, fishes, mollusks, and others.
Worldwide zone of deep ocean waters, about 3,000–13,000 ft (1,000–4,000 m) below the surface.
It is inhabited by a wide variety of marine forms, including eels, fishes, mollusks, and others.
Britannica English dictionary. Английский словарь Британика. 2012