sea·​wa·​ter | \ ˈsē-ˌwȯ-tər How to pronounce seawater (audio) , -ˌwä- \

Definition of seawater

: water in or from the sea

Examples of seawater in a Sentence

Recent Examples on the Web Its waters are known for their magical skin benefits since they are enriched with silica and other seawater minerals. Hannah Streck, Travel + Leisure, 23 Aug. 2021 After a furious fight, in which the monster, spewing seawater and blood, repeatedly attacks the shadow that the airborne Perseus casts on the water below, Perseus slays it, rescues Andromeda and marries her. Washington Post, 19 Aug. 2021 Wave patterns are unpredictable, seawater corrodes metal generating machinery, and waves’ energy is simultaneously dispersed across three dimensions (up-down, forward-backward and left-right). Maddie Bender, Scientific American, 10 Aug. 2021 Today, reverse osmosis is the main desalination method in the United States and produces hundreds of millions of gallons of saltless seawater every day. Jonathan Schifman, Popular Mechanics, 8 Aug. 2021 This baglio—the Sicilian version of a masseria—straddles explorable World War II tunnels and an underground lake of purified seawater. Stephanie Rafanelli, Condé Nast Traveler, 5 Aug. 2021 The stacks are covered with a liner that separate the material from the phosphogypsum process water, mixed seawater and dredged materials that sit above it. Li Cohen, CBS News, 5 Aug. 2021 Ida made landfall just to the west of Grand Isle with a wind gust recorded at 172 mph and seawater swamped the island. Jay Reeves, Anchorage Daily News, 31 Aug. 2021 But scientists in some of the world's driest places are coming up with solutions to boost local food production by introducing plants that thrive with less-fertile soil and seawater. Ana Moreno, CNN, 26 Aug. 2021

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.

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First Known Use of seawater

before the 12th century, in the meaning defined above

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Time Traveler for seawater

Time Traveler

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

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Dictionary Entries Near seawater

sea watch


sea-water green

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Statistics for seawater

Last Updated

19 Sep 2021

Cite this Entry

“Seawater.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2021.

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More Definitions for seawater



English Language Learners Definition of seawater

: water in or from the sea


sea·​wa·​ter | \ ˈsē-ˌwȯ-tər How to pronounce seawater (audio) , -ˌwä- \

Kids Definition of seawater

: water in or from the sea

More from Merriam-Webster on seawater

Nglish: Translation of seawater for Spanish Speakers Encyclopedia article about seawater


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