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freshwater

American  
[fresh-waw-ter, -wot-er] / ˈfrɛʃˌwɔ tər, -ˌwɒt ər /
Or fresh-water

adjective

  1. of or living in water that is fresh or not salt.

    freshwater fish.

  2. accustomed to fresh water only, and not to the sea.

    a freshwater sailor.

  3. small, provincial, or little known.

    a freshwater college.

  4. Obsolete. untrained or of little experience.


freshwater British  
/ ˈfrɛʃˌwɔːtə /

noun

  1. of, relating to, or living in fresh water

  2. (esp of a sailor who has not sailed on the sea) unskilled or inexperienced

  3. small and little known

    a freshwater school

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

freshwater Scientific  
/ frĕshwô′tər /
  1. Consisting of or living in water that is not salty.


Etymology

Origin of freshwater

First recorded in 1520–30; fresh + water

Explanation

The adjective freshwater describes an aquatic environment with very little salt, like a stream or a pond, or an animal that lives there. Water bodies that started as precipitation are freshwater, whether the water came from rain, snowfall, or melting glaciers. A freshwater lake, unlike a salt lake, sea, or ocean, has a low concentration of salts and other minerals. Freshwater bodies make up less than three percent of the earth's water. Freshwater fish and amphibians are the ones that are adapted to live in ponds, lakes, and streams, in contrast to those that thrive in salty water.

Keep Reading on Vocabulary.com

Vocabulary lists containing freshwater

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.

If the fish remain in freshwater, they’ll be considered rainbows.

From Los Angeles Times • Jun. 9, 2026

The two men also tried to obtain more than 200 freshwater reptiles from Albert Bazaar of Louisiana, who was detained last week on animal trafficking charges, according to officials.

From Los Angeles Times • May 16, 2026

The fossil site also points to an ancient river environment filled with fish, freshwater sharks, and crocodiles.

From Science Daily • May 15, 2026

Luján said boosting investment in water-reuse infrastructure “will help conserve freshwater, support local communities, and provide businesses the certainty they need to grow and create jobs.”

From The Wall Street Journal • May 13, 2026

But what were seafaring fish doing in a freshwater pond?

From "Life of Pi" by Yann Martel

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