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 seamount is 250 miles north of Palau — an island country east of the Philippines — and multibeam sonar revealed its peak is hidden about 800 feet below the surface. Mark Price, Sacbee.com, 11 Sep. 2025 Or book a berth aboard the eight-passenger Water and Wind catamaran to sites that include Princess Alice Bank, where huge schools of jack, tuna, and barracuda cloud the seamount. Terry Ward, AFAR Media, 11 Sep. 2025 The second looks to obtain cobalt-rich crusts that have accumulated over millions of years on the tops of seamounts between depths of approximately 3,000 and 8,000 feet, by peeling these crusts off from the bedrock. Amber X. Chen, Smithsonian Magazine, 18 July 2025 Dusky sharks are usually coastal and associated with continental shelves, while Galapagos sharks prefer seamounts and remote islands. Melissa Cristina Márquez, Forbes.com, 16 July 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 21 Sep. 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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