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salinity

American  
[suh-lin-i-tee] / səˈlɪn ɪ ti /

noun

  1. the quality or condition of being salty; saltiness.

    Ocean currents are driven by differences in the temperature and salinity of the water.

  2. a measurement of the amount of salt in a given solution.

    Adding fresh water to a marsh lowers salinity.


Other Word Forms


Etymology

Origin of salinity

salin(e) ( def. ) + -ity ( def. )


Explanation

The word salinity can mean the relative proportion of salt in a solution. Increasing the salinity of a solution will make it sterile, which is why it is often used in medical procedures. The noun salinity is derived from the word saline thought to come from the Latin word salinium meaning "salt cellar" and the suffix ity meaning "condition or quality of being." Mixing salt with water makes a solution with high salinity, which has a sterilizing effect when used in medicine. Salinity is also associated with taste and food. You'll want to avoid foods with high salinity if you have high blood pressure.

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Vocabulary lists containing salinity

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.

See Examples For:

Traditionally, measurements were performed by crews on ships who would sample water columns for data on salinity, said Heide-Jorgensen.

From Barron's ● Aug. 26, 2026

It adds tang, salinity, and helps loosen the dip to your ideal consistency.

From Salon ● Jul. 7, 2026

Featuring varying temperatures and salinity levels, the pools are arranged in a grid in the center of the water room, recalling the layout of the board game “Clue.”

From The Wall Street Journal ● Jun. 9, 2026

Scientists wanted to determine how salinity affects ichthyocarbonate production, which is known to increase as fish adjust to saltier conditions through normal osmoregulation.

From Science Daily ● May 31, 2026

He knew all about the mingling of river and seawater, and how different levels of salinity affected the ecology.

From "Flying Through Water" by Mamle Wolo

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