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pelagic

adjective

pe·​lag·​ic pə-ˈla-jik How to pronounce pelagic (audio)
Synonyms of pelagicnext
: of, relating to, or living or occurring in the open sea : oceanic
pelagic sediment
pelagic birds
pelagic noun

Did you know?

Pelagic comes to us from Greek, via Latin. The Greek word pelagikos became pelagicus in Latin and then pelagic in English. (Pelagikos is derived from pelagos, the Greek word for the sea—it is also a source of archipelago—plus the adjectival suffix -ikos.) Pelagic first showed up in dictionaries in 1656; a definition from that time says that Pelagick (as it was then spelled) meant "of the Sea, or that liveth in the Sea." Centuries later, writers are still using pelagic with the same meaning, albeit less frequently than its more familiar synonym oceanic.

Examples of pelagic in a Sentence

among pelagic animals the undisputed king is the blue whale, the largest creature currently roaming the face of the earth at one time pelagic whaling was the cornerstone of the island's economy
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.
Shallow slip The researchers found that, in the case of Tōhoku, the normal layer of firm rock that usually sits between the plates actually consisted of a 30-meter-thick layer of pelagic clay, a soft, slippery substance that accumulated there over millions of years as microscopic particles settled. New Atlas, 23 Dec. 2025 However, cases in large pelagic species are particularly noteworthy because these animals rely on long-distance migrations, streamlined bodies, and efficient swimming to survive. Melissa Cristina Márquez, Forbes.com, 12 Sep. 2025 For the advanced, channels around the islands work like pelagic highways, attracting more than 3,000 different marine species. Terry Ward, AFAR Media, 11 Sep. 2025 But since these pelagic fish spend most of their time at depths of 1,000 feet or more, and are typically only caught by ocean longliners, scientists are still trying to understand their biology and life histories. Dac Collins, Outdoor Life, 18 June 2025 See All Example Sentences for pelagic

Word History

Etymology

Latin pelagicus, from Greek pelagikos, from pelagos sea — more at plagal

First Known Use

circa 1656, in the meaning defined above

Time Traveler
The first known use of pelagic was circa 1656

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Cite this Entry

“Pelagic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pelagic. Accessed 19 Jan. 2026.

Kids Definition

pelagic

adjective
pe·​lag·​ic pə-ˈlaj-ik How to pronounce pelagic (audio)
: of, relating to, or living or occurring in the open sea : oceanic
pelagic fish
Last Updated: - Updated example sentences
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