sea·​wa·​ter ˈsē-ˌwȯ-tər How to pronounce seawater (audio)
: water in or from the sea

Example Sentences

Recent Examples on the Web The advance of seawater typically occurs in Bailique during the dry season when the Amazon River’s flow diminishes. Fabiano Maisonnave And Eraldo Peres, The Christian Science Monitor, 10 Nov. 2022 La Niña, a natural cooling of seawater in the tropical Pacific Ocean, is in place for a third consecutive year, forecasters said. Emily Deletter, The Enquirer, 22 Oct. 2022 Forecasters warned that catastrophic storm surge could inundate much of the coastline with several feet of seawater, even in places far from Ian’s center. Scott Dance, Washington Post, 14 Oct. 2022 Other ideas include planting seagrasses and other marine plants that naturally capture carbon dioxide and treating seawater to raise its alkalinity. Eric Niiler, WSJ, 28 Oct. 2022 Rich nations may be able to make investments in flood systems, hardier infrastructure and whole new water-management regimes like large-scale desalination projects to turn seawater into drinking water. David Wallace-wells, New York Times, 26 Oct. 2022 It will be powered by a nearby solar farm and will get its water — of which vast amounts are needed to make ammonia — from a local table salt factory that desalinates seawater. Jacopo Prisco, CNN, 18 Oct. 2022 Deep, hydrothermal vents that spew mineral-rich seawater—like the ones found in the Mariana Trench—may have provided the ideal conditions for the origin of life on our planet. Ashley Stimpson, Popular Mechanics, 12 Oct. 2022 But the channel also lets seawater in, forcing the Dutch government to send huge amounts of fresh water down the rivers to push it back. Raymond Zhong,, 10 Oct. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seawater.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of seawater was before the 12th century

Dictionary Entries Near seawater

Cite this Entry

“Seawater.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2022.

Kids Definition



sea·​wa·​ter ˈsē-ˌwȯt-ər How to pronounce seawater (audio)
: water in or from the sea

More from Merriam-Webster on seawater

Last Updated: - Updated example sentences
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