filtration

Noun
  1. The process whereby fluids pass through a filter or a filtering medium (synset 113501870)
    is a type of: action, activity, natural action, natural process - a process existing in or produced by nature (rather than by the intent of human beings)
    subtypes: infiltration, percolation - the slow passage of a liquid through a filtering medium
  2. The act of changing a fluid by passing it through a filter (synset 100192829)
    is a type of: change - the action of changing something
    subtypes: percolation - the filtration of a liquid for extraction or purification

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