/trayl"blay'zeuhr/ , n.
1. a person who blazes a trail for others to follow through unsettled country or wilderness; pathfinder.
2. a pioneer in any field of endeavor: a trailblazer in science.
Also called trailbreaker /trayl"bray'keuhr/ .
[ 1905-10; TRAIL + BLAZE 2 + -ER 1 ]