Meaning Of The Word Epicycle

Real Dictionary

What's the definition of Epicycle? Find Epicycle meanings, definitions and more at the Real Dictionary online.

Epicycle Meaning

Epicycle Definition
Epicycle Definition

What's The Definition Of Epicycle?

epicycle in American English
a circle whose center moves along the circumference of another, larger circle
noun: a small circle the center of which moves around in the circumference of a larger circle: used in Ptolemaic astronomy to account for observed periodic irregularities in planetary motions

epicycle in British English
noun: (in the Ptolemaic system) a small circle, around which a planet was thought to revolve, whose centre describes a larger circle (the deferent) centred on the earth

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