variants
or less commonly sea bed
plural seabeds also sea beds
: the floor of a sea or ocean : seafloor
This atoll is the summit of an undersea volcano that rises from the seabed 10,000 feet below the surface.—
Kennedy Warne
Kennedy WarneExamples of seabed in a Sentence
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The Endurance Wreck, Revived By AI From space to seabed, the Future Lab experience also plunged into the history of Ernest Shackleton’s legendary ship, the Endurance.
—Bernard Marr, Forbes.com, 24 July 2025
In billion-year-old seabeds, the remains of these creatures piled up and compacted, first becoming limestone and then, thanks to intense heat and pressure, marble.
—Meara Sharma, The Dial, 22 July 2025
Occupying a stretch of seabed 200 metres from the Ayia Napa coastline lies the Museum of Underwater Sculpture, one of the most otherworldly artistic experiences in the whole of the Mediterranean.
—Kin Woo, Vogue, 30 June 2025
The main battle lines will thus be drawn along the Arctic seabed, in international waters, and en route to outer space.
—Michael Albertus, Foreign Affairs, 24 June 2025
See All Example Sentences for seabed
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Bernard Marr, Forbes.com, 24 July 2025
In billion-year-old seabeds, the remains of these creatures piled up and compacted, first becoming limestone and then, thanks to intense heat and pressure, marble.
—Meara Sharma, The Dial, 22 July 2025
Occupying a stretch of seabed 200 metres from the Ayia Napa coastline lies the Museum of Underwater Sculpture, one of the most otherworldly artistic experiences in the whole of the Mediterranean.
—Kin Woo, Vogue, 30 June 2025
The main battle lines will thus be drawn along the Arctic seabed, in international waters, and en route to outer space.
—Michael Albertus, Foreign Affairs, 24 June 2025
See All Example Sentences for seabed
Cite this Entry
“Seabed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seabed. Accessed 29 Jul. 2025.
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seabed
noun
sea·bed
ˈsē-ˌbed 
: the floor of a sea or ocean
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