sea·​mount | \ ˈsē-ˌmau̇nt How to pronounce seamount (audio) \

Definition of seamount

: a submarine mountain rising above the deep-sea floor

Examples of seamount in a Sentence

Recent Examples on the Web Others told USNI News that the submarine had hit and grounded upon an uncharted seamount in the South China Sea. Craig Hooper, Forbes, 3 Nov. 2021 The seamount has erupted several times over the past couple decades, most recently in 2015. oregonlive, 19 Jan. 2022 The only way to actually detect an eruption of the seamount, though, is with technical instruments. oregonlive, 19 Jan. 2022 The portion of the glacier that hangs over the ocean is being melted from beneath by warming sea water, while the entire structure is losing its grip on an underwater seamount that helps hold it back from flowing out to sea. Eric Mack, Forbes, 25 Dec. 2021 The observations show the critical ice shelf keeping the Thwaites together is loosening its grip on the underwater mountain, or the seamount, which acts as a reinforcement against the ice river from flowing into the warm ocean. Rachel Ramirez, CNN, 14 Dec. 2021 The last time the Navy publicly reported a submarine had damaged their forward ballast tanks was in 2005, when the USS San Francisco (SSN-711) suffered a catastrophic collision with a seamount. Craig Hooper, Forbes, 3 Nov. 2021 The US Navy has not said exactly where the Connecticut hit the seamount. Brad Lendon, CNN, 4 Nov. 2021 Furthermore, the massive seamount did not appear in a previous geological survey conducted by the Naval Hydrographic and Oceanographic Service in France in 2014. Elizabeth Gamillo, Smithsonian Magazine, 22 Oct. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seamount.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of seamount

1941, in the meaning defined above

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Time Traveler for seamount

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The first known use of seamount was in 1941

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Dictionary Entries Near seamount

sea moth


sea mouse

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Last Updated

8 Apr 2022

Cite this Entry

“Seamount.” Dictionary, Merriam-Webster, Accessed 25 May. 2022.

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