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
Arctic lands and seabeds also hold vast quantities of critical minerals and energy resources, and Arctic waters are becoming an increasingly important source of food as warming ocean temperatures compel fish to swim north seeking cooler waters.
—Michael Albertus, Foreign Affairs, 24 June 2025
The article notes that learning more about the deep sea would be useful in many ways, including for developing responsible seabed mining practices and for understanding how climate change and human activities are affecting oceans.
—Jeremy Engle, New York Times, 16 May 2025
The International Seabed Authority is preparing to make key decisions on future seabed mining in July 2025, including rules and guidelines relating to mining waste, discharge depths and environmental protection.
—Alexus Cazares-Nuesser, The Conversation, 25 Mar. 2025
The Trump Administration signed an executive order late last month aiming to fast-track approval for seabed mining critical minerals found in the deep sea.
—Simmone Shah, Time, 7 May 2025
See All Example Sentences for seabed
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Michael Albertus, Foreign Affairs, 24 June 2025
The article notes that learning more about the deep sea would be useful in many ways, including for developing responsible seabed mining practices and for understanding how climate change and human activities are affecting oceans.
—Jeremy Engle, New York Times, 16 May 2025
The International Seabed Authority is preparing to make key decisions on future seabed mining in July 2025, including rules and guidelines relating to mining waste, discharge depths and environmental protection.
—Alexus Cazares-Nuesser, The Conversation, 25 Mar. 2025
The Trump Administration signed an executive order late last month aiming to fast-track approval for seabed mining critical minerals found in the deep sea.
—Simmone Shah, Time, 7 May 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 18 Jul. 2025.
Copy CitationKids Definition
seabed
noun
sea·bed
ˈsē-ˌbed 
: the floor of a sea or ocean
Love words? Need even more definitions?
Merriam-Webster unabridged
Share