Definitions for seabed
ˈsiˌbɛdseabed

Princeton's WordNetRate this definition:0.0 / 0 votes

1. ocean floor, sea floor, ocean bottom, seabed, sea bottom, Davy Jones's locker, Davy Jonesnoun

   the bottom of a sea or ocean

WiktionaryRate this definition:0.0 / 0 votes

1. seabednoun

   The floor or bottom of the sea or ocean

WikipediaRate this definition:0.0 / 0 votes

1. Seabed

   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.

FreebaseRate this definition:0.0 / 0 votes

1. Seabed

   The seabed is the bottom of the ocean.

Matched Categories

1. • Bed

Anagrams for seabed »

1. debase

How to pronounce seabed?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say seabed in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of seabed in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of seabed in Pythagorean Numerology is: 9

Examples of seabed in a Sentence

1. 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.

2. Kobi Sharvit:

   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.

3. Peter Washam:

   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.

4. Heather Humphreys:

   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.

5. Chris Hoy:

   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.

Popularity rank by frequency of use