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nounthe bottom of a sea or ocean
Definition that contains seabed
- buoy bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards
- bathyal zone the steep descent of the seabed from the continental shelf to the abyssal zone
- continental shelf the relatively shallow (up to 200 meters) seabed surrounding a continent
- continental slope the steep descent of the seabed from the continental shelf to the abyssal zone
- bathyal district the steep descent of the seabed from the continental shelf to the abyssal zone