EPICYCLE

Pronunciation (US): (GB):

Meaning:

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

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("epicycle" is a kind of...):

circle (ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point)

Derivation:

epicyclic; epicyclical (of or relating to an epicycle)