filtration
/fɪlˈtreɪʃn
/noun [mass noun]
The action or process of filtering something: small particles are difficult to remove without filtration...
- In the first step, large contaminants were removed by filtration through filter paper.
- It is a wholesale and humiliating process of filtration.
- Lastly, does the water filtration and circulation process cope with keeping the water in the pools clean?