a. Pertaining to, resembling, or having the motion of, an epicycle. [ 1913 Webster ]
Epicyclic train (Mach.), a train of mechanism in which epicyclic motion is involved; esp., a train of spur wheels, bevel wheels, or belt pulleys, in which an arm, carrying one or more of the wheels, sweeps around a center lying in an axis common to the other wheels. [ 1913 Webster ]
{ } a. [ L. encyclios of a circle, general, Gr. &unr_;; &unr_; in + &unr_; circle: cf. F. encyclique. See Cycle. ] Sent to many persons or places; intended for many, or for a whole order of men; general; circular; as, an encyclical letter of a council, of a bishop, or the pope.