hypocycloid

listen to the pronunciation of hypocycloid
الإنجليزية - التركية
hiposikloit
iççevrim eğrisi
الإنجليزية - الإنجليزية
The locus of a point on the circumference of a circle that rolls without slipping inside the circumference of another circle
Epicycloid, and Trochoid
{i} geometric figure formed by tracing the movement of a set point on the circumference of a smaller circle that is rolling within a larger circle (Geometry)
A curve traced by a point in the circumference of a circle which rolls on the concave side in the fixed circle
Cf
a line generated by a point on a circle that rolls around inside another circle