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
That gear stores the rope and buoy with a trap on the seafloor until an acoustic release mechanism sends the buoy to the surface.
—Linda Zavoral, Mercury News, 17 Apr. 2026
Some toxic chemicals are also released from the oil and enter the water column, the ocean habitat that extends from the surface to the seafloor.
—Asuka Koda, CNN Money, 17 Apr. 2026
Some of the latest incidents of accidental or suspected sabotage damage to undersea cables have even simply involved ships dragging their anchors across the seafloor.
—Jonathan M. Gitlin, ArsTechnica, 16 Apr. 2026
King tides — the year’s highest tides, which climate change is making more frequent and severe — stir up sediment and reduce the light that reaches the seafloor.
—ABC News, 10 Apr. 2026
See All Example Sentences for seafloor
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Linda Zavoral, Mercury News, 17 Apr. 2026
Some toxic chemicals are also released from the oil and enter the water column, the ocean habitat that extends from the surface to the seafloor.
—Asuka Koda, CNN Money, 17 Apr. 2026
Some of the latest incidents of accidental or suspected sabotage damage to undersea cables have even simply involved ships dragging their anchors across the seafloor.
—Jonathan M. Gitlin, ArsTechnica, 16 Apr. 2026
King tides — the year’s highest tides, which climate change is making more frequent and severe — stir up sediment and reduce the light that reaches the seafloor.
—ABC News, 10 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 24 Apr. 2026.
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