|1.||a person who makes or finds a way, esp through unexplored areas or fields of knowledge|
|2.||an aircraft or parachutist who indicates a target area by dropping flares, etc|
|3.||a radar device used for navigation or homing onto a target|
pathfinder path·find·er (pāth'fīn'dər)
A filiform bougie for introduction through a narrow stricture as a guide for the passage of a larger instrument.