Other Definitions
backwash (dict)
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Backwash - For the album, see Backwash (album)
Backwash is the backwards flow of air or water. Backwash can be created naturally by waves rebounding off a beach or other obstacle. It is created by propulsion devices such as an oar or engine. Unlike a slipstream and backwash is harder to travel through than normal, and in sports such as rowing avoiding a competitors backwash is important. See also: backwash filter
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