Lewis Short
lustrātĭo (noun F) : lustro
* A purification by sacrifice, a lustration.
* Lit.: lustrationis sacro peracto,Liv. 40, 6; 40, 13, 2 sq.; Col. 2, 22, 5.
* Transf. [v. lustro, II.], a going or wandering about: lustrationesque (ferarum),Cic. Tusc. 5, 27, 79: municipiorum,id. Phil. 2, 23, 57.
Charlton T. Lewis, Charles Short, A Latin Dictionary