hypocycloid

Noun

 * 1)  The locus of a point on the circumference of a circle that rolls without slipping inside the circumference of another circle.

Translations

 * Czech: hypocykloida
 * French:
 * Hungarian: hipociklois
 * Ido:
 * Irish: hipicioglóideach
 * Italian: ipocicloide
 * Polish: hipocykloida
 * Russian:
 * Serbo-Croatian: хипоциклоида
 * Spanish: hipocicloide