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

The organisms would have to have been either blown in by the wind or left over from a time when seawater was cut off from the ocean as water levels fell and the glacier moved into place over it at some point around two million years ago. — Adam Kovac, Scientific American, 3 Aug. 2026

Solar desalination has emerged as a promising solution, using sunlight to convert seawater into freshwater with relatively low energy requirements. — Bojan Stojkovski, Interesting Engineering, 2 Aug. 2026

Sal, Boa Vista and São Vicente depend heavily on seawater desalination because their groundwater resources cannot meet demand, which in turn increases energy consumption. — Emese MacZko, Forbes.com, 1 Aug. 2026

Performed beneath a continuous gentle rain of warm seawater, this experience combines mineral-rich marine exposure and thermal comfort soothing aching muscles along the way and quieting the mind. — Rana Good, Condé Nast Traveler, 1 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