Definition of "lustration" [lus•tra•tion]

• A rite of purification, especially washing. (noun)
• The restoration of credibility to a government by the purging of perpetrators of crimes committed under an earlier regime. (noun)

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• "The idea of airing the past as part of a healing process, and excluding members of the former regime from positions of authority - a process known as "lustration" - is being actively promoted by some in the Ukrainian administration."
• "So Christ proposes baptism, as the token of that lustration, which is to purify such as become citizens in the kingdom of heaven."
• "Today, across the border in Poland, a witch-hunt called "lustration" is on for anyone who allegedly "collaborated" in any way with the Communist regime."