FILTRATION
Meaning of FILTRATION in English
fil ‧ tra ‧ tion /fɪlˈtreɪʃ ə n/ BrE AmE noun [uncountable]
the process of cleaning a liquid by passing it through a ↑ filter
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012