: of, relating to, or occurring in the deeper parts of the sea
deep-sea fishing

Examples of deep-sea in a Sentence

chartered a boat to do some deep-sea fishing
Recent Examples on the Web
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.
Despite researchers conducting several surveys focused on shark populations in Papua New Guinea and numerous deep-sea surveys in the region, no other records of the species were ever recorded — until now, according to a paper published Aug. 21 in the Journal of Fish Biology. Lauren Liebhaber, Miami Herald, 22 Aug. 2025 In this photo provided by the Japan Agency for Marine-Earth Science and Technology on July 30, the unmanned deep-sea probe Urashima conducts a trial in the Pacific Ocean. Ryan Chan, MSNBC Newsweek, 15 Aug. 2025 While scientists race to understand these ecosystems, deep-sea mineral extraction is moving closer to reality. Ingmar Rentzhog, Forbes.com, 14 Aug. 2025 As a science journalist and ocean explorer, she's investigated misinformation campaigns on social media, embedded in Alaskan archaeological digs, and contributed to the discovery of deep-sea organisms in the Central Pacific. Madison Dapcevich, Outside, 12 Aug. 2025 See All Example Sentences for deep-sea

Word History

First Known Use

circa 1625, in the meaning defined above

Time Traveler
The first known use of deep-sea was circa 1625

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Cite this Entry

“Deep-sea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deep-sea. Accessed 27 Aug. 2025.

Kids Definition

deep-sea

adjective
ˌdēp-ˌsē
: of, relating to, or occurring in the deeper parts of the sea
deep-sea fishing
Last Updated: - Updated example sentences
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