[ˌɛpɪˈsɪkloʊɪd]

Definitions

1. noun

A curve generated by the motion of a point attached to a circle that itself rolls around a fixed circle, or a curve of this shape.

“The engineer studied the properties of epicycloids to design a more efficient gear system.”

2. adjective

Describing or relating to a curve that is an epicycloid.

“The mathematician specialized in epicycloid geometry and its applications in engineering.”