Lewis Short
(Adj.) : explōrātor, ōris, m.id.
* A searcher out, examiner, explorer; a prying person, a spy (not in Cic.)
* In gen.: rerum, Lucil. ap. Non. 366, 31: suppositicius,Plaut. Ps. 4, 7, 71.
* Searching: ignes, Claud. III. Cons. Hon. praef. 11: foci,Mart. 8, 51, 4.
* In partic.
* In milit. lang.
* A spy, scout, Caes. B. G. 1, 12, 2; 2, 5, 4; 2, 11, 3; 2, 17, 1 et saep.
* Explorator viae, one who ran before the emperor to clear the way, Suet. Tib. 60.
Charlton T. Lewis, Charles Short, A Latin Dictionary