See Also: backwash(medicine)
backwash(dictionary)
backwash(dictionary)
backwash ileitis(medicine)

backwash (iou)



backwash noun & verb. L19.
[from BACK adverb + WASH noun.]
A. noun.
The motion of a receding wave, a backward current; fig. repercussions. L19.
The process of cleaning a filter by flushing it in the reverse direction to normal flow; the liquid used in this process. E20.
b. verb trans.
Move or otherwise affect (a boat etc.) with backwash. L19.
Clean (a filter) by flushing it in the reverse direction to normal flow; remove (sediment, an obstruction) using this method. M20.