Definition of seamount
: a submarine mountain rising above the deep-sea floor
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Recent Examples of seamount from the Web
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The shipwreck and seamount marks on in-flight maps are there to educate and entertain.
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This pumice raft (see right) is the product of a submarine volcanic eruption from one of the multiple of seamounts that are part of Kermadec arc north of New Zealand.
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.
1941
First Known Use of seamount
1941
Learn More about seamount
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See words that rhyme with seamount Britannica.com: Encyclopedia article about seamount
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