epicyclic gear train

Thesaurus

Noun

1.

epicyclic gear train - a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axisepicyclic traingearing, geartrain, power train, gear, train - 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"epicyclic gear, planet gear, planet wheel, planetary gear - an outer gear that revolves about a central sun gear of an epicyclic trainsun gear - the central gear in an epicyclic train