differential gear

noun Machinery.

differential(def 7).
any of various comparable arrangements of gears, as an epicyclic train.

Origin of differential gear

First recorded in 1885–90

Words nearby differential gear

differential calculus, differential coefficient, differential compaction, differential diagnosis, differential equation, differential gear, differential geometry, differential operator, differential psychology, differential quotient, differential rate

British Dictionary definitions for differential gear

differential gear

noun

the epicyclic gear mounted in the driving axle of a road vehicle that permits one driving wheel to rotate faster than the other, as when cornering