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
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When a member of the group died, another member or a friend would carve the person’s name into a rock and free-dive to place the stone on the seafloor.
—Ashley MacKin Solomon, San Diego Union-Tribune, 31 July 2025
Beneath the surface of the frozen ocean, dark and briny currents would have stirred continuously from geothermal heat billowing out of cracks in the seafloor.
—Laura Poppick
july 22, Literary Hub, 22 July 2025
Others, like the hammerhead and saw shark, prefer the sandy seafloor.
—Irit Skulnik, Baltimore Sun, 22 July 2025
This life is all but a fraction of what scientists suspect exists on the deep seafloor.
—Amber X. Chen, Smithsonian Magazine, 18 July 2025
See All Example Sentences for seafloor
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Ashley MacKin Solomon, San Diego Union-Tribune, 31 July 2025
Beneath the surface of the frozen ocean, dark and briny currents would have stirred continuously from geothermal heat billowing out of cracks in the seafloor.
—Laura Poppick
july 22, Literary Hub, 22 July 2025
Others, like the hammerhead and saw shark, prefer the sandy seafloor.
—Irit Skulnik, Baltimore Sun, 22 July 2025
This life is all but a fraction of what scientists suspect exists on the deep seafloor.
—Amber X. Chen, Smithsonian Magazine, 18 July 2025
See All Example Sentences for seafloor
Cite this Entry
“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 9 Aug. 2025.
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