Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of epicycle is as below...

Epicycle :: Epicycle (n.) A circle which rolls on the circumference of another circle, either externally or internally..

Deferent :: Deferent (n.) An imaginary circle surrounding the earth, in whose periphery either the heavenly body or the center of the heavenly body's epicycle was supposed to be carried round..

Epicyclic :: Epicyclic (a.) Pertaining to, resembling, or having the motion of, an epicycle..

Epicycle :: Epicycle (n.) A circle, whose center moves round in the circumference of a greater circle; or a small circle, whose center, being fixed in the deferent of a planet, is carried along with the deferent, and yet, by its own peculiar motion, carries the body of the planet fastened to it round its proper center..

Equant :: Equant (n.) A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; -- called also eccentric equator.

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