seafloor

noun

sea·​floor ˈsē-ˌflȯr How to pronounce seafloor (audio)
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

Examples of seafloor in a Sentence

Recent Examples on the Web The dramatic find was uncovered during a standard seafloor survey last year by a leading natural gas company. Jns Staff Report, Sun Sentinel, 20 June 2024 These laws require that sharks brought ashore by fishermen have all their fins naturally attached and aim to end the practice of stripping the creatures of their fins and returning them, mutilated, to the water to die on the seafloor. Angela Posada-Swafford, Discover Magazine, 28 June 2024 Its hundreds of storage jars, called Canaanite amphorae, spilled into heaps on the seafloor. Ellen Wexler, Smithsonian Magazine, 21 June 2024 Mapping the seafloor is the first step in exploring the unknown depths of our global ocean. Kurt Snibbe, Orange County Register, 10 June 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.

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of seafloor was in 1853

Dictionary Entries Near seafloor

Cite this Entry

“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 26 Jul. 2024.

Kids Definition

seafloor

noun
sea·​floor -ˌflō(ə)r How to pronounce seafloor (audio)
-ˌflȯ(ə)r
: seabed

More from Merriam-Webster on seafloor

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