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

At about 180 million years old, they formed during a time when animals were actively disturbing the seafloor worldwide, which normally erases delicate microbial textures.

From Science Daily

During quieter periods between debris flows, these bacteria can spread across the seafloor and form mats on top of the sediment.

From Science Daily

Even so, the seafloor hosts enormous features that surpass the size of the largest land canyons.

From Science Daily

The scientists used high resolution sonar to produce a detailed map of the seafloor.

From Science Daily

Their analysis shows that roughly 300 million cubic meters of magma rose from deep within the crust and stalled about four kilometers beneath the seafloor.

From Science Daily