What does seabed mean?
Definitions for seabed
This dictionary definitions page includes all the possible meanings, example usage and translations of the word seabed.
ocean floor, sea floor, ocean bottom, seabed, sea bottom, Davy Jones's locker, Davy Jonesnoun
the bottom of a sea or ocean
The floor or bottom of the sea or ocean
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates mid-ocean ridges along the center line of major ocean basins, where the seabed is slightly shallower than the surrounding abyssal plain. From the abyssal plain, the seabed slopes upward toward the continents and becomes, in order from deep to shallow, the continental rise, slope, and shelf. The depth within the seabed itself, such as the depth down through a sediment core, is known as the “depth below seafloor.” The ecological environment of the seabed and the deepest waters are collectively known, as a habitat for creatures, as the “benthos.” Most of the seabed throughout the world's oceans is covered in layers of marine sediments. Categorized by where the materials come from or composition, these sediments are classified as either: from land (terrigenous), from biological organisms (biogenous), from chemical reactions (hydrogenous), and from space (cosmogenous). Categorized by size, these sediments range from very small particles called clays and silts, known as mud, to larger particles from sand to boulders. Features of the seabed are governed by the physics of sediment transport and by the biology of the creatures living in the seabed and in the ocean waters above. Physically, seabed sediments often come from the erosion of material on land and from other rarer sources, such as volcanic ash. Sea currents transport sediments, especially in shallow waters where tidal energy and wave energy cause resuspension of seabed sediments. Biologically, microorganisms living within the seabed sediments change seabed chemistry. Marine organisms create sediments, both within the seabed and in the water above. For example, phytoplankton with silicate or calcium carbonate shells grow in abundance in the upper ocean, and when they die, their shells sink to the seafloor to become seabed sediments. Human impacts on the seabed are diverse. Examples of human effects on the seabed include exploration, plastic pollution, and exploitation by mining and dredging operations. To map the seabed, ships use acoustic technology to map water depths throughout the world. Submersible vehicles help researchers study unique seabed ecosystems such as hydrothermal vents. Plastic pollution is a global phenomenon, and because the ocean is the ultimate destination for global waterways, much of the world's plastic ends up in the ocean and some sinks to the seabed. Exploitation of the seabed involves extracting valuable minerals from sulfide deposits via deep sea mining, as well as dredging sand from shallow environments for construction and beach nourishment.
The seabed is the bottom of the ocean.
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The numerical value of seabed in Chaldean Numerology is: 2
The numerical value of seabed in Pythagorean Numerology is: 9
Examples of seabed in a Sentence
The Egyptian investigation committee:
Search equipment aboard French naval vessel Laplace ... has detected signals from the seabed of the search area, which likely belong to one of the data boxes.
The discovery of such a large hoard of coins that had such tremendous economic power in antiquity raises several possibilities regarding its presence on the seabed, there is probably a shipwreck there of an official treasury boat which was on its way to the central government in Egypt with taxes that had been collected.
In the coming years, we expect the Thwaites grounding line in the region to slowly retreat up the seabed slope that it currently rests on as the warm ocean eats away at its underside.
On current evidence, the other two wreck sites remain buried beneath a protective layer of sand, but the wreck of La Juliana is now partly exposed on the seabed along with some of its guns and other wreck material, this material is obviously very historically and archaeologically significant.
In that moment, my whole life changed, i completely misjudged the dive and went into the seabed. I hit my head and blacked out for a few seconds.
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"seabed." Definitions.net. STANDS4 LLC, 2023. Web. 25 Mar. 2023. <https://www.definitions.net/definition/seabed>.
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