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
This is where the species spend their productive summer months, feasting on small crustaceans and other seafloor prey.
—Scott Travers, Forbes.com, 26 Jan. 2026
Near the seafloor, rays experienced negative lift, meaning they were pulled downward.
—Neetika Walter, Interesting Engineering, 22 Jan. 2026
Examples of each can be found in how the world is dealing with rising tensions over Arctic shipping, seafloor mining and overfishing.
—Hossain Ahmed Taufiq, The Conversation, 15 Jan. 2026
Byrne's team assessed the potential for tectonic activity on Europa's seafloor with a new model that factored in stresses from gravitational tides incurred by Jupiter, the long-term contraction of the moon as its interior gradually cools and the convection of heat energy through the mantle.
—Keith Cooper, Space.com, 9 Jan. 2026
See All Example Sentences for seafloor
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Scott Travers, Forbes.com, 26 Jan. 2026
Near the seafloor, rays experienced negative lift, meaning they were pulled downward.
—Neetika Walter, Interesting Engineering, 22 Jan. 2026
Examples of each can be found in how the world is dealing with rising tensions over Arctic shipping, seafloor mining and overfishing.
—Hossain Ahmed Taufiq, The Conversation, 15 Jan. 2026
Byrne's team assessed the potential for tectonic activity on Europa's seafloor with a new model that factored in stresses from gravitational tides incurred by Jupiter, the long-term contraction of the moon as its interior gradually cools and the convection of heat energy through the mantle.
—Keith Cooper, Space.com, 9 Jan. 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 29 Jan. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
