Synonyms

seawater

American

[see-waw-ter, -wot-er] / ˈsiˌwɔ tər, -ˌwɒt ər /

noun

the salt water in or from the sea.

seawater Scientific

/ sē′wô′tər /

Salt water, normally with a salinity of 35 parts per thousand (3.5%), in or coming from the sea or ocean. Although seawater contains more than 70 elements, most seawater salts are ions of six major elements: chloride, sodium, sulfate, magnesium, calcium, and potassium. The major sources of these salts are underwater volcanic eruptions, chemical reactions involving volcanic matter, and chemical weathering of rocks on the coasts. Seawater is believed to have had the same salinity for billions of years.

Etymology

Origin of seawater

before 1000; Middle English see water, Old English sǣwæter; sea, water

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At the Dotson Ice Shelf, the team located where seawater flows into one of these cavities and where it exits after mixing with meltwater.

From Science Daily

One is the expansion of seawater as it warms, since the oceans absorb roughly 90% of the excess heat trapped in Earth's climate system.

From Science Daily

Israel, an arid country, is a world leader in water management -- nearly 90 percent of its wastewater is recycled and vast seawater desalination plants provide more than 80 percent of its drinking water.

From Barron's

The consortium that owns Cirebon Power said it follows government regulations and wastewater is expelled "in a clear, pure condition, at the same temperature as the seawater".

From Barron's

Although Antarctica is often viewed as untouched wilderness, previous research has detected plastic fragments in fresh snow and nearby seawater.

From Science Daily

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023