Definition of deep-seanext
as in oceanic
of, relating to, or occurring in the open sea chartered a boat to do some deep-sea fishing

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of deep-sea The reversal comes after the agency’s May 21 announcement of its intent to remove hundreds of deep-sea buoys and sensors employed by the $368-million Ocean Observatories Initiative had drawn congressional and international backlash. Dan Vergano, Scientific American, 18 June 2026 Host organisms may also depend on endosymbionts for fixing carbon and atmospheric nitrogen to survive under extreme conditions such as in deep-sea hydrothermal vents. Encyclopedia Britannica, 18 June 2026 The submersible imploded on its 88th dive, killing all five on board who were on a deep-sea voyage to the Titanic wreckage on June 18, 2023. Ayesha Ali, ABC News, 17 June 2026 And lastly, abyssine (according to the brand) is a polymer derived from deep-sea organisms that eliminates and protects from pollution, environmental stressors, and general damage. Tamim Alnuweiri, InStyle, 15 June 2026 See All Example Sentences for deep-sea
Recent Examples of Synonyms for deep-sea
oceanic
Adjective
  • Swimming alongside oceanic manta rays and watching dolphins race beside the boat left a lasting impression, but so did the lifestyle itself.
    Jordan Greene, PEOPLE, 22 June 2026
  • Panthalassa previously conducted oceanic field tests using its Ocean-1, Ocean-2, and Wavehopper designs in 2021 and 2024 to verify the stability of its power generation and navigational software.
    Aman Tripathi, Interesting Engineering, 19 June 2026

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Cite this Entry

“Deep-sea.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deep-sea. Accessed 29 Jun. 2026.

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