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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The lengthy pre-copulation stage involved all three sharks motionless on the seafloor for nearly an hour, after which the female started swimming with one male shark biting onto each of her pectoral fins.
—Jennifer Ouellette, ArsTechnica, 23 Sep. 2025
The wind had a shape, pulling and yanking chaotically like ocean currents working plants on the seafloor.
—Dana Goodyear, New Yorker, 22 Sep. 2025
Ballard and his team worked with the Egyptian Navy to conduct a sonar survey of the seafloor.
—Soo Kim, MSNBC Newsweek, 19 Sep. 2025
This carbon from the sky is then carried by rivers to the sea where it’s laid down on the seafloor as carbonate rocks like limestone.
—Peter Brannen, Quanta Magazine, 15 Sep. 2025
See All Example Sentences for seafloor
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Jennifer Ouellette, ArsTechnica, 23 Sep. 2025
The wind had a shape, pulling and yanking chaotically like ocean currents working plants on the seafloor.
—Dana Goodyear, New Yorker, 22 Sep. 2025
Ballard and his team worked with the Egyptian Navy to conduct a sonar survey of the seafloor.
—Soo Kim, MSNBC Newsweek, 19 Sep. 2025
This carbon from the sky is then carried by rivers to the sea where it’s laid down on the seafloor as carbonate rocks like limestone.
—Peter Brannen, Quanta Magazine, 15 Sep. 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 24 Sep. 2025.
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