Submitted by György Chityil ... on Fri, 01/19/2018 - 17:13 Hierarchy: NounDescription: {{rfv-sense}} The removal of impurities, a refining process.Ngram: purificationNgram Text: purificationSource: WiktionaryIssue: 0Wiktionary tag: rfv-senseNgram Count: 1Wikokit WikiText ID: 1114608