seafloor

American  

[see-flawr] / ˈsiˌflɔr /

Or sea floor

noun

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

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Etymology

Origin of seafloor

First recorded in 1850–55; sea + floor

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Example Sentences

See Examples For:

seafloor

The researchers identified a large thermal gradient, with temperatures reaching approximately 350 degrees Celsius beside the magma intrusion and falling to about 72 degrees Celsius at an ancient seafloor asphalt spill roughly 300 meters higher.

From Science Daily ● Sep. 26, 2026

The monitoring systems use instruments anchored to the seafloor that continuously measure pressure, temperature, density, and ocean currents.

From Science Daily ● Sep. 23, 2026

That was a big moment for us, because suddenly we could actually see the seafloor.

From Science Daily ● Sep. 15, 2026

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

Marine archaeologists also use side-scan sonar for developing nautical charts, locating underwater hazards, and mapping the seafloor.

From "Shipwrecked!" by Martin W. Sandler

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