monstrātor, ōris, 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.