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
Recent Examples on the Web
To begin construction, the male pushes its belly on the sandy seabed to make a central spot in the future circle.
—New Atlas, 3 Jan. 2026
The company will use underwater vehicles, deep sea drones and advanced scanning technology across a 6,000-square-mile swath of the Indian Ocean seabed.
—Peter Guo, NBC news, 30 Dec. 2025
The team successfully mapped the exact position and conducted partial radiation surveys of the hull and surrounding seabed.
—Aman Tripathi, Interesting Engineering, 17 Dec. 2025
And in 2016, Beijing passed a deep-seabed law designed to develop China’s scientific and commercial capabilities and to provide a framework for engaging in international negotiations regarding ocean floorresources.
—Elizabeth Economy, Foreign Affairs, 9 Dec. 2025
See All Example Sentences for seabed
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New Atlas, 3 Jan. 2026
The company will use underwater vehicles, deep sea drones and advanced scanning technology across a 6,000-square-mile swath of the Indian Ocean seabed.
—Peter Guo, NBC news, 30 Dec. 2025
The team successfully mapped the exact position and conducted partial radiation surveys of the hull and surrounding seabed.
—Aman Tripathi, Interesting Engineering, 17 Dec. 2025
And in 2016, Beijing passed a deep-seabed law designed to develop China’s scientific and commercial capabilities and to provide a framework for engaging in international negotiations regarding ocean floorresources.
—Elizabeth Economy, Foreign Affairs, 9 Dec. 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 9 Jan. 2026.
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seabed
noun
sea·bed
ˈsē-ˌbed 
: the floor of a sea or ocean
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