epicycloid

ep·i·cy·cloid  (p-skloid) n. The curve described by a point on the circumference of a circle as the circle rolls on the outside of the circumference of a second, fixed circle. epi·cy·cloidal (-kloidl) adj.

epicycloid The parametric equations of a three-cusped epicycloid are: x=(a + b) cos - b cos a + b/b y = (a + b) sin - b sin a + b/b

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epicycloid [ˌɛpɪˈsaɪklɔɪd]

n

(Mathematics) the curve described by a point on the circumference of a circle as this circle rolls around the outside of another fixed circle, the two circles being coplanar Compare hypocycloid, cycloid [4]

epicycloidal  adj

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epicycloid  (p-skloid)

The curve described by a point on the circumference of a circle as the circle rolls on the outside of the circumference of a second, fixed circle.

Thesaurus

Noun

1.

epicycloid - a line generated by a point on a circle rolling around another circle line roulette, roulette - a line generated by a point on one figure rolling around a second figure cardioid - an epicycloid in which the rolling circle equals the fixed circle