epicycloid

n. [数]圆外旋轮线, 外摆线

发音

US

词形变化

epicycloids 复数 epicycloids

释义与例句

n.
  1. 1.

    The locus of a point on the circumference of a circle that rolls without slipping on the circumference of another circle.

    数学

词汇关系

名词

上位词 1

roulette

下位词 1

cardioid

词源

From epi- (“above or outside”) + cycloid.

来源：wiktionary