Lewis Short
monstrātor (noun M) : monstro
* A shower, pointer out, introducer, inventor, teacher, informant (poet. and in post-Aug. prose): aratri,i. e. Triptolemus,Verg. G. 1, 19: sacri iniqui,an introducer of human sacrifices,Ov. Ib. 399: hospitii,Tac. G. 21; Luc. 9, 979.
Charlton T. Lewis, Charles Short, A Latin Dictionary