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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

formation, geological formation go
(geology) the geological features of the earth

depression, natural depression go
a sunken or depressed geological formation

bed, bottom go
a depression forming the ground under a body of water

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

noun.object

5 Subcategories

abyssal zone go
the deep sea (2000 meters or more) where there is no light
continental shelf go
the relatively shallow (up to 200 meters) seabed surrounding a continent
continental slope, bathyal zone, bathyal district go
the steep descent of the seabed from the continental shelf to the abyssal zone
neritic zone go
the ocean waters from the low tide mark to a depth of about 100 fathoms
twilight zone go
the lowest level of the ocean to which light can reach