EP'ICYCLE, noun [Gr. a circle.] A little circle, whose center is in the circumference of a greater circle; or a small orb, which, being fixed in the deferent of a planet, is carried along with it, and yet by its own peculiar motion, carries the body of the planet fastened to it round its proper center.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI