Freshwater
Freshwater
Freshwater (/ˈfrɛʃˌwɔːtər/) refers to naturally occurring water with low concentrations of dissolved salts and other total dissolved solids. It is generally characterized by having low concentrations of salinity and other dissolved solids, as opposed to saltwater.
Etymology
The term "freshwater" is derived from the Old English fresce wæter, which means "natural water". The term was first used in the 14th century to differentiate it from saltwater or seawater.
Related Terms
- Aquifer: An underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well.
- Brackish Water: Water that has more salinity than freshwater, but not as much as seawater. It may result from mixing of seawater with freshwater.
- Groundwater: The water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
- Hydrology: The scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources and environmental watershed sustainability.
- Potable Water: Water that is safe enough for drinking and food preparation.
See Also
External links
- Medical encyclopedia article on Freshwater
- Wikipedia's article - Freshwater
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