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Definition of seawater

seawater

/ˈsiːˌwɔː.tər/
sea · wa · ter
Plural:seawaters
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seawater Lexical Profile

seawater Game Scores & Validity

• noun

1

Water in or taken from a sea or ocean, characterized by a high concentration of dissolved salts, predominantly sodium chloride.

Example

"The desalination plant converts millions of gallons of seawater into fresh drinking water every day."

Synonyms
View all synonyms for seawater
Antonyms
View all antonyms for seawater

• Nearby Words

seatwork
seawall
seaward
seawater
seaway
seaweed
seaworthiness

Word Origin & Etymology

From Old English 'sǣwæter', a transparent compound formed from 'sǣ' (sea) and 'wæter' (water).

Cite this Entry

Wordmom. (2026). Definition of Seawater. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/seawater
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