Definition of "musher"

musher

noun
plural mushers
1. One who operates a dogsled, traditionally using the verbal command “mush”.
  Quotations
  A sled dog learns that by the time she’s hungry, her musher has already prepared a meal; by the time she’s tired, she has a warm bed.
  2020 September 23, Blair Braverman, “What My Sled Dogs Taught Me About Planning for the Unknown”, in The New York Times‎
2. One who travels by dogsled.
3. One who races in a dogsled in a race.