D defs.my
Entry 1 sense Webster, 1913

Pathfinder

/păth'-fīnˌ-dẽr/ · Path·find·er · IPA /ˈpæθˌfaɪndəɹ/
01 n. One who discovers a way or path; one who explores untraversed regions.
  1. 1.
    One who discovers a way or path; one who explores untraversed regions.
    “The cow is the true pathfinder and pathmaker.” — J. Burroughs.