backwash
Pronunciation:
/ˈbæk.wɒʃ//ˈbæk.wɑʃ/noun
Definitions
The backward flow of water from oars or propeller or breaking waves.
The similar flow of air from an aircraft engine.
The result or consequence of an event; an aftermath.
The saliva, spit or food particles that have flowed back into a drink after someone has drunk from it.
verb
Definitions
To operate a water filter in the reverse direction in order to clean it.
To affect with backwash.
To clean the oil from wool after combing.