Epicycle

Ep"i*cy`cle

(?), n. [L. epicyclus, Gr. ; 'epi` upon + circle. See Cycle.] 1. (Ptolemaic Astron.) 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.
[1913 Webster]

The schoolmen were like astronomers which did feign eccentrics, and epicycles, and such engines of orbs.
Bacon.
[1913 Webster]

2. (Mech.) A circle which rolls on the circumference of another circle, either externally or internally.
[1913 Webster]

ep`i*cyc"lic

,

ep`i*cyc"lic*al

(?), a. Pertaining to, resembling, or having the motion of, an epicycle.
[1913 Webster]

Epicyclic train (Mach.), a train of mechanism in which epicyclic motion is involved; esp., a train of spur wheels, bevel wheels, or belt pulleys, in which an arm, carrying one or more of the wheels, sweeps around a center lying in an axis common to the other wheels.
[1913 Webster]

 

New - Add Dictionary Search to Your Site

You can add a free dictionary search box to your own web site by copying and pasting the following HTML into one of your web pages:

<form action="http://www.freedict.co.uk/search.php" method="post">
 <p style="text-align: center; font-family: sans-serif;">
  <a style="font-weight: bold;" href="http://www.freedict.co.uk/"
     title="FreeDict free online dictionary">FreeDict</a>
  <input type="text" name="word" size="20" value="" />
  <input type="submit" name="submit" value="Search Dictionary" />
 </p>
</form>

 

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sun 16th December 2018