Lustration
Pronunciation : Lus*tra"tion
Part of Speech : n.
Etymology : [L. lustratio: cf. F. lustration.]
Definition : 1. The act of lustrating or purifying. And holy water for lustration bring. Dryden.
2. (Antiq.)
Defn: A sacrifice, or ceremony, by which cities, fields, armies, or people, defiled by crimes, pestilence, or other cause of uncleanness, were purified.
Source : Webster's Unabridged Dictionary, 1913