seafloor

or sea floor

[ see-flawr ]

noun

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

Word History and Origins

Origin of seafloor¹

First recorded in 1850–55; sea + floor

Example Sentences

Nudibranches tend to live on the seafloor and in coastal environments, such as coral reefs, kelp forests and tide pools.

From Los Angeles Times

On the deep seafloor, rough volcanic terrain harbors corals, sponges and fish.

From Los Angeles Times

While footage filmed at this depth can only show parts of Endurance in the gloom, the scan shows the complete 44m long wooden wreck from bow to stern - even recording the grooves carved into the sediment as the ship skidded to a halt on the seafloor.

From BBC

A23a has not grounded again; there is at least a thousand metres of water between its underside and the seafloor.

From BBC

Prof Taylor showed how a current that meets an obstruction on the seafloor can - under the right circumstances - separate into two distinct flows, generating a full-depth mass of rotating water between them.

From BBC