filtration
/ˌfɪltrəˈfeɪʃən/Definitions
1. noun
the act or process of filtering something, such as liquid or gas, to remove impurities
“The water treatment plant uses a series of filtration steps to purify the water.”
2. noun
the act of separating or distinguishing between different things, especially based on their quality or characteristics
“The judges’ deliberation was a process of careful filtration, considering each candidate’s qualifications.”
3. noun
a device or system used for filtering something, such as a water filter or a air filter
“The car’s air filtration system needed to be replaced, as it was clogged with dust.”