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
Active sonar systems emit a pulse of sound into the water, which then bounces off the seafloor, creating an echo.
—Kurt Snibbe, Oc Register, 8 May 2026
In 1996, a scuba diver spotted in the waters offshore a muscular arm thrust out of the seafloor.
—Kevin West, Travel + Leisure, 8 May 2026
Accurate seafloor mapping is critical for nautical charts, storm surge models, and fisheries planning.
—Paula Wethington, CBS News, 7 May 2026
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
See All Example Sentences for seafloor
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Kurt Snibbe, Oc Register, 8 May 2026
In 1996, a scuba diver spotted in the waters offshore a muscular arm thrust out of the seafloor.
—Kevin West, Travel + Leisure, 8 May 2026
Accurate seafloor mapping is critical for nautical charts, storm surge models, and fisheries planning.
—Paula Wethington, CBS News, 7 May 2026
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
See All Example Sentences for seafloor
Cite this Entry
“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 16 May. 2026.
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