Backwash may refer to:

Physical phenomena

  • Backwash (physical phenomenon), also known as "swash", the backwards flow of air or water
  • A mixture of beverage and saliva<!--second link ok--> that has flowed back into a drinking vessel
  • Backwash ileitis, the involvement of the terminal part of the ileum in ulcerative colitis, following the ascent of the condition from the rectum
  • Backwashing (water treatment), the process of thoroughly cleaning a pool filter pump by reversing the flow of water through it with the dirt and rinse water going to waste

Arts, entertainment, and media

  • Backwash (album), a retrospective compilation by the group Talulah Gosh
  • "Backwash" (The Wire), a 2003 episode of the HBO television series The Wire
  • Backwash squeeze, a type of squeeze play in bridge
  • Backxwash, Zambian-Canadian rapper and producer

See also

  • Mouthwash