Backwash

Noun

  • The result or consequence of an event; an aftermath.
  • The similar flow of air from an aircraft engine.
  • (nautical) The backward flow of water from oars or propeller or breaking waves.
  • The saliva, spit or food particles that have flowed back into a drink after someone has drunk from it.

Verb

  • To operate a water filter in the reverse direction in order to clean it.

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