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Epitrochoid vs. Epitrochoidal

Epitrochoid and Epitrochoidal Definitions

Epitrochoid

A geometric curve traced by a fixed point on one circle which rotates around the perimeter of another circle. Examples include the shape of the Wankel engine Category:en:Curves

Epitrochoidal

Being or relating to an epitrochoid.

Epitrochoid

A kind of curve. See Epicycloid, any Trochoid.

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