EXPLORATION n. 2 definitions
The act of exploring, penetrating, or ranging over for purposes of discovery, especially of geographical discovery; examination; as, the exploration of unknown countries; (Med.)
EXPRESS a. 13 definitions
Intended for a particular purpose; relating to an express; sent on a particular errand; dispatched with special speed; as, an express messenger or train. Also used adverbially. A messenger sent express from the other world. Atterbury. Express color. (Law) See the Note under Color, n., 8.