Lewis Short
explōrātĭo (noun F) : exploro
* An examination, exploration (post-Aug.): surculi,Col. 3, 9, 5: exploratione occulta fallere aliquem,Tac. H. 3, 54.
* In partic., in milit. lang., a spying, Dig. 49, 16, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary