Definition of "drivetrain"

drivetrain

noun
plural drivetrains
1. (mechanical engineering) The mechanical parts of the powertrain, the gears and shafts, that connect the engine to the wheels in a vehicle.
  Quotations
  If you wait until later, your drivetrain is liable to misshift under the hard pedaling load.
  1990, Joe Kita, Bicycling Magazine's New Bike Owner's Guide, page 28