seamount

noun

sea·​mount ˈsē-ˌmau̇nt How to pronounce seamount (audio)
: a submarine mountain rising above the deep-sea floor

Examples of seamount in a Sentence

Recent Examples on the Web
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The researchers also revealed that certain deep-sea topographical features, like canyons and ridges, have attracted much more scientific attention than abyssal plains and seamounts. Margherita Bassi, Smithsonian Magazine, 12 May 2025 Hydrothermal vents and seamounts are likely to be more tricky to mine. Laura Paddison, CNN Money, 8 May 2025 The ocean currents surrounding undersea pinnacles and seamounts enhance the availability of food sources such as plankton. Melissa Cristina Marquez, Forbes, 22 Jan. 2025 Zoom in: Given its proximity to the coast and level of activity, the seamount was picked to be the first underwater volcano observatory in the world. Kale Williams, Axios, 14 Jan. 2025 See All Example Sentences for seamount

Word History

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of seamount was in 1941

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Cite this Entry

“Seamount.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seamount. Accessed 1 Jun. 2025.

Kids Definition

seamount

noun
sea·​mount ˈsē-ˌmau̇nt How to pronounce seamount (audio)
: a submarine mountain

More from Merriam-Webster on seamount

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