Definition of Epicycle in English :

Define Epicycle in English

Epicycle meaning in English

Meaning of Epicycle in English

Pronunciation of Epicycle in English

Epicycle pronunciation in English

Pronounce Epicycle in English


see synonyms of epicycle


1. epicycle

a circle that rolls around (inside or outside) another circle; generates an epicycloid or hypocycloid

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of epicycle
1. astronomy
(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
a circle that rolls around the inside or outside of another circle, so generating an epicycloid or hypocycloid

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of epicycle
a circle whose center moves along the circumference of another, larger circle
term used to describe planetary motions in the Ptolemaic system
2.  Geometry
a circle which generates a hypocycloid or epicycloid by rolling around the circumference of a fixed circle

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of epicycle
1. In Ptolemaic cosmology, a small circle, the center of which moves on the circumference of a larger circle at whose center is the earth and the circumference of which describes the orbit of one of the planets around the earth.
2. Mathematics A circle whose circumference rolls along the circumference of a fixed circle, thereby generating an epicycloid or a hypocycloid.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.