Pathfinder (
also Mars Pathfinder)
a US government space programme in which NASA sent a spacecraft without people inside to Mars in 1997 in order to find out more information about the
planet [TahlilGaran] Dictionary of Contemporary English ▲
path‧find‧er /ˈpɑːθˌfaɪndə $ ˈpæθˌfaɪndər/
noun [countable] especially American English1. 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
Synonym : trailblazer [TahlilGaran] Dictionary of Contemporary English ▲