sea·​wa·​ter | \ ˈsē-ˌwȯ-tər, -ˌwä-\

Definition of seawater

: water in or from the sea

Examples of seawater in a Sentence

Recent Examples on the Web

Still, processing seawater requires a great deal of energy, so fresh water is a valuable commodity. Dave Taft, New York Times, "The Biggest Bully on the Beach," 24 Jan. 2018 Called Departure One, the 30-foot long camper sits on a trailer and consists of a seawater resistant aluminum hull. Megan Barber, Curbed, "5 campers pushing RV design into the future," 28 Sep. 2018 Season the water with coarse kosher salt to taste, but don't make it as saline as seawater — more like tears. Gabrielle Hamilton, House Beautiful, "Gabrielle Hamilton's Olive Oil-Poached Tuna with Potatoes and Swiss Chard Stems," 12 Sep. 2012 The group of migrants engaged in the current standoff includes people with severe chemical burns suffered at sea from being exposed to a mixture of fuel and seawater, according to Doctors Without Borders, which is providing aid to the migrants. Jared Malsin, WSJ, "Migrants Rescued by Cargo Ship Refuse to Get Off in Libya," 19 Nov. 2018 The rare infection is spread through warm seawater and raw shellfish, and can affect the skin or the gastrointestinal tract. Megan Friedman, Country Living, "The Scary Reason You May Want to Avoid the Ocean This Summer," 24 June 2015 The survey team found groundwater seeps along most of the coast, ranging from areas just slightly fresher than seawater to some pools of almost completely fresh water. Kiona N. Smith, Ars Technica, "How did Easter Islanders survive without wells or streams?," 17 Oct. 2018 The interaction between the thread, mucin, and seawater creates a three-dimensional, viscoelastic network. Laura Yan, Popular Mechanics, "The U.S. Navy Is Creating a Military Slime," 18 Aug. 2018 Josh Mahoney, a local lobsterman, said the seawater that the center pumps into its research tanks and discharges back into the ocean has already warmed the waters off East Point, scaring away lobsters. Michael Levenson,, "In Nahant, a quiet seaside research center has turned into a bitter battleground," 19 Mar. 2018

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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Statistics for seawater

Last Updated

10 Jan 2019

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Time Traveler for seawater

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

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English Language Learners Definition of seawater

: water in or from the sea


sea·​wa·​ter | \ ˈsē-ˌwȯ-tər, -ˌwä-\

Kids Definition of seawater

: water in or from the sea

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More from Merriam-Webster on seawater

Rhyming Dictionary: Words that rhyme with seawater

Spanish Central: Translation of seawater

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

Comments on seawater

What made you want to look up seawater? Please tell us where you read or heard it (including the quote, if possible).


to gather or build up little by little

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