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.
© Webster 1913.