Definify.com
Webster 1913 Edition
epicyclical
epˊi-cyc′lic
,epˊi-cyc′lic-al
Adj.
Pertaining to, resembling, or having the motion of, an epicycle.
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.