The Collaborative International Dictionary of English v.0.48:
Explorative \Ex*plor"a*tive\, a. Exploratory. [1913 Webster]WordNet (r) 3.0 (2006):
explorative adj 1: serving in or intended for exploration or discovery; "an exploratory operation"; "exploratory reconnaissance"; "digging an exploratory well in the Gulf of Mexico"; "exploratory talks between diplomats" [syn: exploratory, explorative] [ant: nonexplorative, nonexploratory, unexplorative, unexploratory]