variants
or less commonly sea floor
plural seafloors also sea floors
: the floor of a sea or ocean : seabed
The Earth's crust, in this view, is divided into several immense plates that make up the continents and seafloors, and that all float on a hot, plastic, subterranean "mantle."—
Walter Sullivan
Walter SullivanExamples of seafloor in a Sentence
Recent Examples on the Web
Now, offshore wind developers, submarine cable companies and defense contractors are pouring money into high‑resolution seafloor mapping.
—Natalie Sum Yue Chung, Fortune, 3 May 2026
Meanwhile, early versions of mollusks and sponges populated the seafloor as jellyfish floated above.
—Marlowe Starling, Quanta Magazine, 1 May 2026
The researchers used high-resolution grinding tomography and an artificial intelligence model to find the fossils, which were located in rock samples that had been preserved in seafloor sediments found in Japan and Vancouver Island from 100 to 72 million years ago.
—Brie Stimson, FOXNews.com, 24 Apr. 2026
This division of labor allows the colony to remain partially buried in the seafloor while still efficiently feeding from passing water currents.
—Samantha Agate, Charlotte Observer, 23 Apr. 2026
See All Example Sentences for seafloor
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Natalie Sum Yue Chung, Fortune, 3 May 2026
Meanwhile, early versions of mollusks and sponges populated the seafloor as jellyfish floated above.
—Marlowe Starling, Quanta Magazine, 1 May 2026
The researchers used high-resolution grinding tomography and an artificial intelligence model to find the fossils, which were located in rock samples that had been preserved in seafloor sediments found in Japan and Vancouver Island from 100 to 72 million years ago.
—Brie Stimson, FOXNews.com, 24 Apr. 2026
This division of labor allows the colony to remain partially buried in the seafloor while still efficiently feeding from passing water currents.
—Samantha Agate, Charlotte Observer, 23 Apr. 2026
See All Example Sentences for seafloor
Cite this Entry
“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 7 May. 2026.
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