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.
In a state bounded on three sides by seawater, where water courses through underground aquifers and some 50 inches of rain falls annually, a series of historic efforts to drain the Everglades have made modern Florida possible. Amy Green, Miami Herald, 9 Jan. 2026 The cycle swings between warmer and cooler seawater in a region along the equator in the tropical Pacific. Doyle Rice, USA Today, 8 Jan. 2026 However, one of the stumbling blocks on this pathway is borate, which is a family of common compounds found in seawater. Keith Cooper, Space.com, 5 Jan. 2026 In a savvy environmental move, the resort pumps in cold seawater to feed the air-conditioning system and for use at the spa. Condé Nast, Condé Nast Traveler, 31 Dec. 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 16 Jan. 2026.

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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