seamount

[ see-mount ]

noun

1. a submarine mountain rising several hundred fathoms above the floor of the sea but having its summit well below the surface of the water.

seamount

/ ˈsiːˌmaʊnt /

noun

1. See guyot
   a submarine mountain rising more than 1000 metres above the surrounding ocean floor Compare guyot

seamount

/ sē′mount′ /

1. A large underwater mountain, usually conical in shape and at least 1,000 m (3,280 ft) above the ocean floor. Seamounts are usually isolated and are volcanic in origin.

Word History and Origins

Origin of seamount¹

First recorded in 1945–50; sea + mount ²

Example Sentences

Other “triple win” areas are centered around mid-oceanic ridges, where the seafloor is ripped open by plate tectonics, and seamounts — where underwater volcanism gives rise to submarine peaks.

From Washington Post