n.
Pronunciation: ' e-p ə - ˌ s ī -k ə l
Function: noun
Etymology: Middle English epicicle, from Late Latin epicyclus, from Greek epikyklos, from epi- + kyklos circle ― more at WHEEL
Date: 14th century
1 in Ptolemaic astronomy : a circle in which a planet moves and which has a center that is itself carried around at the same time on the circumference of a larger circle
2 : a process going on within a larger one
– epi · cy · clic \ ˌ e-p ə - ' s ī -klik, - ' si-klik \ adjective