Lus‐tra″tion (?), n. [L. lustratio: cf. F. lustration.] 1. The act of lustrating or purifying.
And holy water for lustration bring. Dryden.
2. (Antiq.) A sacrifice, or ceremony, by which cities, fields, armies, or people, defiled by crimes, pestilence, or other cause of uncleanness, were purified.