Noun epicyclic train has 1 sense
  1. epicyclic train, epicyclic gear train - a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
    --1 is a kind of gearing, gears, geartrain, power train, train
    --1 has parts:
     planetary gear, epicyclic gear, planet wheel, planet gear; sun gear
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