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

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

noun. 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  

epicyclic gear train  epicyclic train  reduction gear  

gearing  gears  power train  train