This is the 9105th most frequent Japanese word.
濾過
Filtration.
The word '濾過' is used to describe the action performed by the device, which is filtering water.
この装置は水を濾過して、きれいにします。
This device filters water to make it clean.
Here, '濾過' is utilized as a noun to specify the process of filtration in a context discussing its significance.
濾過の過程は非常に重要です。
The filtration process is very important.
'濾過' is used as part of a past-tense verb form to describe water that has already been filtered.