backwash

Definitions


[ˈbakwɒʃ], (Noun)

Definitions:
- the motion of receding waves
(e.g: the backwash is reduced in energy by the percolation of water into the shingle)


Phrases:

Origin:


[ˈbakwɒʃ], (Verb)

Definitions:
- clean (a filter) by reversing the flow of fluid through it
(e.g: the very fine mesh is backwashed to remove solids)


Phrases:

Origin:




definition by Oxford Dictionaries