sea bottom

Noun

1.

sea bottom - the bottom of a sea or ocean Synonyms: Davy Jones, Davy Jones's locker, ocean bottom, ocean floor, seabed

abyssal zone, bathyal district, bathyal zone, bed, bottom, continental shelf, continental slope, Davy Jones, Davy Jones's locker, neritic zone, ocean bottom, ocean floor, seabed, twilight zone