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.
Roofs were peeled away, and windows blown out in the Category 5 hurricane, leaving no protection from the rain and up to 16 feet of seawater driven onto land in the storm surge. David Culver, CNN Money, 3 Nov. 2025 Hurricane Melissa’s devastation is the awful alchemy created by the unique combination of unstoppable gusts, seawater that is forced inland and deluge that pours out of the sky, all interacting with the landscape and human lives the storm found in its path. Meghan Bartels, Scientific American, 29 Oct. 2025 In addition, rising sea levels, driven by melting ice caps and thermal expansion of seawater, exacerbate the impact of storm surges -- leading to significant coastal flooding. Julia Jacobo, ABC News, 28 Oct. 2025 Radiolarians are adept at distilling silica, a form of quartz, from seawater, a process known as biomineralization. Literary Hub, 28 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 5 Nov. 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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