サイクロイド

noun

cycloid

A mathematical curve traced by a point on the rim of a circle rolling along a straight line. Used in geometry and mechanics.

• サイクロイド曲きょく線せんは、円えんが直ちょく線せん上じょうを転ころがるときに円えん周しゅう上じょうの一いっ点てんが描えがく軌き跡せきです。

  A cycloid curve is the locus traced by a point on the circumference of a circle as it rolls along a straight line.