C2 noun /ˌɛpɪˈsaɪklɔɪd/
epicycloid
エピサイクロイド
Meaning
a curve traced by a point on the circumference of a circle that rolls around the outside of another circle
Example
The mathematician demonstrated how to draw an epicycloid.
数学者はエピサイクロイドの描き方を示しました。