割かっ線せん

noun

secant line

Geometry term for a line that intersects a curve at two or more points.

• 円えんの割かっ線せんは、円えん周しゅうと二に点てんで交まじわる直ちょく線せんです。

  A secant line of a circle is a straight line that intersects the circumference at two points.