Filtration
/fɪˈltreɪʃən/
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Definition
(noun) The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
Sentence Examples
There's a problem with the water filtration system.
The air filtration system is blocked.
CEFR Practice Quiz
The water undergoes a rigorous ____ process to remove any impurities before it is bottled for sale.