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

Definition of seafloor

Examples of seafloor in a Sentence

Recent Examples on the Web When the track aligns with certain areas on the seafloor, stormquakes are much more likely, even if the storm is weaker. Leah Asmelash, CNN, "Scientists just discovered 'stormquakes' -- but don't worry, you're not in danger," 17 Oct. 2019 Separate studies of material drilled near the Mariana Trench in the Pacific Ocean hint that some organisms could be living six miles below the seafloor, limited only by the heat at such tremendous depths. NBC News, "Strange life-forms found deep in a mine point to vast 'underground Galapagos'," 7 Sep. 2019 These petite sharks, native to shallow seafloor environments off the coast of South Africa, are already adapted to occasional spells of intense acidity, common where cold, acidic water often wells up to the surface. Katherine J. Wu, Smithsonian, "Acidifying Oceans Could Corrode the Tooth-Like Scales on Shark Skin," 21 Dec. 2019 Really, there isn't much on the tropical seafloor that the mantis shrimp can't destroy and consume, so long as the prey isn't too big. Matt Simon, Wired, "When a Mantis Shrimp Fights a Disco Clam, It Meets Its Match," 13 Dec. 2019 The miles-long cable had been there for a decade, transmitting data to and from scientific instruments on the seafloor, but Lindsey, a geoscientist at UC Berkeley, was trying something new. Wired, "Scientists Spot an Undersea Fault Using Fiber-Optic Cables," 28 Nov. 2019 The exhibit will be centered around the ruins of a sunken ship, scattered across the seafloor, featuring bright fish and crustaceans. Sarah Brookbank,, "Newport Aquarium announces new exhibit: Realm of the Eels," 8 Nov. 2019 The interaction between these secondary waves and the sea floor produces a specific type of pressure force, which then creates a hammer-like effect on the seafloor. Leah Asmelash, CNN, "Scientists just discovered 'stormquakes' -- but don't worry, you're not in danger," 17 Oct. 2019 Winnick was founder and chairman of Global Crossing, which in the 1990s installed fiber-optic highways across the seafloor to create a global network connecting four continents and 27 countries. Neal J. Leitereg, Los Angeles Times, "Legendary Bel-Air estate Casa Encantada lists for the highest price in America: $225 million," 16 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seafloor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of seafloor

1855, in the meaning defined above

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The first known use of seafloor was in 1855

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Last Updated

8 Jan 2020

Cite this Entry

“Seafloor.” The Dictionary, Merriam-Webster Inc., Accessed 19 January 2020.

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How to pronounce seafloor (audio)

English Language Learners Definition of seafloor

: the ground that is at the bottom of the sea

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Nglish: Translation of seafloor for Spanish Speakers

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to insert between existing elements

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