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n. a connected set of rotating gears by which force is transmitted or motion or torque is changed.

n. A set of three or more gears used for transmitting motion. See train of gearing.

n. wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed

"The range extended electric drive of the Evora 414E Hybrid consists of two electric motors driving each of the rear wheels independently via single speed geartrain, integrated into a common transmission housing, thus enabling torque vectoring for stability control of the vehicle."

wheelwork   

reduction gear    epicyclic gear train    epicyclic train   

gearing    gears    power train    train