Meaning of PATHFINDER in English

path ‧ find ‧ er /ˈpɑːθˌfaɪndə $ ˈpæθˌfaɪndər/ BrE AmE noun [countable] especially American English

1 . someone who goes ahead of a group and finds the best way through unknown land

2 . a person who discovers new ways of doing things SYN trailblazer

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.