seawater

noun

sea·​wa·​ter ˈsē-ˌwȯ-tər 

-ˌwä-

: water in or from the sea

Examples of seawater in a Sentence

Recent Examples on the Web

Meanwhile in Florida, a third death in less than a month was attributed to the flesh-eating bacteria Vibrio vulnificus, which thrives in warmer, brackish seawater or by eating raw or undercooked shellfish. — Janet Loehrke, USA Today, 25 Aug. 2026

In Portugal, the SIN01 AI data center in Sines uses seawater from the Atlantic to cool its servers before returning it to the ocean. — Nir Kshetri, The Conversation, 17 Aug. 2026

The kingdom is the largest single desalinator of seawater, producing 790 billion gallons per year, and relying on it for 60% of its potable needs. — Taylor Luck, Christian Science Monitor, 17 Aug. 2026

Researchers continue studying why certain Roman concrete structures have endured seawater and weathering so effectively. — Atharva Gosavi, Interesting Engineering, 16 Aug. 2026

Word History

First Known Use

before the 12th century, in the meaning defined above

Rhymes for seawater

• backwater
• bathwater
• blackwater
• breakwater
• deepwater
• edgewater
• feedwater
• floodwater
• freshwater
• granddaughter
• groundwater
• headwater

Kids Definition

seawater

noun

sea·​wa·​ter ˈsē-ˌwȯt-ər 

-ˌwät-

: water in or from the sea