epicyclic train
noun Machinery.
a train of gears or pulleys in which one or more of the axes revolve about a central axis.
Origin of epicyclic train
First recorded in 1885–90
Words nearby epicyclic train
epicurean,
epicureanism,
epicurus,
epicuticle,
epicycle,
epicyclic train,
epicycloid,
epicycloidal gear,
epicycloidal wheel,
epicystitis,
epicystotomy
British Dictionary definitions for epicyclic train
epicyclic train
noun
a cluster of gears consisting of a central gearwheel with external teeth (the sun), a coaxial gearwheel of greater diameter with internal teeth (the annulus), and one or more planetary gears engaging with both of them to provide a large gear ratio in a compact space