in automotive mechanics, gear arrangement that permits power from the engine to be transmitted to a pair of driving wheels, dividing the force ... [1 related articles]
[n] - a bevel gear that permits rotation of two shafts at different speeds
differential noun a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves
differential (def. 7). · any of various comparable arrangements of gears, as an epicyclic train.