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Related to geartrain: planetary gear train
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|Noun||1.||geartrain - wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed; "the fool got his tie caught in the geartrain"|
engine - motor that converts thermal energy to mechanical work
epicyclic gear train, epicyclic train - a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
reduction gear - gearing that reduces an input speed to a slower output speed
wheelwork - mechanical device including an arrangement of wheel in a machine (especially a train of gears)