line that intersects a curve at least twice
In geometry, a secant is a line that intersects a curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning "to cut". In the case of a circle, a secant intersects the circle at exactly two points. A chord is the line segment determined by the two points, that is, the interval on the secant whose ends are the two points.
Circles
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).