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
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.
Meanwhile, seawater intrudes like an advancing army toward thicker ice, which rests on bedrock that slopes inward toward the bowl-like center of the continent. Evan Howell, Quanta Magazine, 20 Oct. 2025 This breakthrough could help make energy storage greener, cheaper, and more efficient with the surprising possibility of turning seawater into drinking water. Neetika Walter, Interesting Engineering, 20 Oct. 2025 Katy Puig vomited a gush of seawater as a boater hoisted her unconscious body out of the water, fighting the current to get her to a yacht that had come to the rescue before first responders arrived in a flotilla. David Goodhue, Miami Herald, 19 Oct. 2025 This flow of water could generate hydroelectricity, too, which could be used to desalinate some of the seawater into freshwater. Big Think, 17 Oct. 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 24 Oct. 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

Last Updated: - Updated example sentences
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