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
Instead of needing a long buoy-line suspended in the water column for extended periods of time, the rope and buoy can be stored at the bottom of the seafloor or replaced with an inflatable bag.
—Francine Kershaw, The Mercury News, 9 Apr. 2024
Thousands of feet below the surface of the South China Sea, scientists aboard a submarine stared at the seafloor.
—Aspen Pflughoeft, Miami Herald, 28 Mar. 2024
See all Example Sentences for seafloor 
Francine Kershaw, The Mercury News, 9 Apr. 2024
Thousands of feet below the surface of the South China Sea, scientists aboard a submarine stared at the seafloor.
—Aspen Pflughoeft, Miami Herald, 28 Mar. 2024
See all Example Sentences for seafloor
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'seafloor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near seafloor
Cite this Entry
“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 3 May. 2024.
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