There are 2 definitions of pathfinder in English:

pathfinder1

Syllabification: path·find·er
Pronunciation: /ˈpaTHˌfīndər
 
/

noun

1A person who goes ahead and discovers or shows others a path or way.
More example sentences
  • Is she seen as a bit of a - well, as you said, a trailblazer, a pathfinder for women, not just in athletics, in that time?
  • They're the groundbreakers and the pathfinders.
  • They can be described as visionaries, revolutionaries, radicals, liberals, nonconformists, outsiders, insurgents, prophets, pathfinders.
1.1An aircraft or its pilot sent ahead to locate and mark the target area for bombing.
More example sentences
  • But no one in FEMA had enough sense to ask about air drops, pathfinders, Special Tactics Teams or anything which could have sent immediate aid.
  • It made its mark in the attack on Poland in September 1939 and its versatility was such that it was used as a bomber, reconnaissance plane and as a pathfinder by the Luftwaffe.
  • It developed more specialised roles such as a torpedo-carrier, a glider tug and a pathfinder.
1.2 [usually as modifier] An experimental plan or forecast: a pathfinder prospectus
More example sentences
  • The row highlighted the haphazard application of the rules covering pathfinder prospectuses.
  • The federal interdepartmental committee reviewing pathfinder projects specifically indicated its preference for citizen-facing projects.
  • The plans have been drawn up by eight regional pathfinder partnerships across England.
Synonyms
pioneer, groundbreaker, trailblazer, trendsetter, leader, torchbearer, pacemaker

Definition of pathfinder in:

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Word of the day antebellum
Pronunciation: ˌantɪˈbɛləm
adjective
occurring or existing before a particular war…

There are 2 definitions of pathfinder in English:

Pathfinder2

Syllabification: Path·find·er
Pronunciation: /ˈpaTHˌfīndər
 
/
(in full Mars Pathfinder)
An unmanned American spacecraft that landed on Mars in 1997, deploying a small robotic rover (Sojourner) to explore the surface and examine the rocks.

Definition of pathfinder in: