purification

/ˌpjʊrəfəˈkeɪʃən/
noun
  1. The process of removing contaminants or unwanted substances from something.
    • Air purifiers are used for the purification of indoor air from dust and allergens.
    • Water purification plants ensure that tap water is safe to drink.
    • The purification of crude oil involves several complex chemical processes.
  2. The process of making something spiritually or morally clean.
    • The ceremony involved a symbolic purification through the use of incense and water.
    • Many religions include rituals of purification before entering a sacred space.
    • She went on a silent retreat for spiritual purification and self-reflection.