Lewis Short
purgātor (noun M) : id..
* Lit., a cleanser, purger (post - class.): cloacarum, Firm. Math. 8, 20: ferarum,an exterminator of wild beasts,App. Mag. p. 288, 26.
* Trop.: animae, Aug. Civ. Dei, 10, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary