seawater

noun

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

Examples of seawater in a Sentence

Recent Examples on the Web
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Still, the Scotland project seems to have addressed the question of whether the turbines can last in seawater, added Copping, a distinguished faculty fellow in the School of Marine and Environmental Affairs at the University of Washington. Jennifer McDermott, Los Angeles Times, 10 July 2025 All energy is from renewable solar sources, and the hotel’s water treatment facility uses reverse osmosis to convert seawater into freshwater. Hazel Plush, Travel + Leisure, 7 July 2025 The water is jostled by giant machines to mix the seawater. Alina Hartounian, NPR, 7 July 2025 The aragonite saturation state in seawater, represented by ΩArag, is a measure of how easily aragonite dissolves in seawater, and is used to track ocean acidification. Grrlscientist, Forbes.com, 22 June 2025 See All Example Sentences for seawater

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

Browse Nearby Words

Cite this Entry

“Seawater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seawater. Accessed 21 Jul. 2025.

Kids Definition

seawater

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

More from Merriam-Webster on seawater

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