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 Trump urged Starmer to resume deep-sea drilling in the North Sea to ramp up gas and oil production in order to calm markets. Claire Carter, The Washington Examiner, 21 June 2026 Its namesake ingredient—mineral-rich deep-sea water sourced near Korea's Dokdo region—is naturally packed with skin-balancing minerals like magnesium and calcium. Christa Joanna Lee, Allure, 19 June 2026 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 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 6 Jul. 2026.

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