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seafloor

American  
[see-flawr] / ˈsiˌflɔr /
Or sea floor

noun

  1. the solid surface underlying a sea or an ocean.


Etymology

Origin of seafloor

First recorded in 1850–55; sea + floor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One of the senior researchers on the expedition, Andrew DeVogelaere, said he was focused on the seafloor, “thinking about the whale pits,” when the squid suddenly showed up.

From Los Angeles Times Sep. 5, 2026

The process of hydraulic fracturing ekes out oil from older wells, and involves cracking the bedrock several thousand feet below the seafloor by injecting chemical fluids with intense pressure.

From Los Angeles Times Aug. 14, 2026

"The oil that settles on the seafloor, depending on when and where it is, could persist for years," he added.

From BBC Aug. 14, 2026

This rapid cooling locks in much of the magma's original chemical composition, giving scientists a valuable record of the conditions deep below the seafloor.

From Science Daily Jul. 29, 2026

He drives his boat throughout the SalishSea, harvesting giant clams from the seafloor.

From "The Sea in Winter" by Christine Day

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