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English definition of “purification”

purification

noun [U] (NOT MIXED)    /ˌpjʊə.rɪ.fɪˈkeɪ.ʃən/ US  /ˌpjʊr-/
the act of removing harmful substances from something: a water purification plant an air purification systemCleaning generallyPersonal hygiene and appearance - general words
(Definition of purification noun (NOT MIXED) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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