ELLIPSES

noun

10 Scrabble

13 WWF

E 1

L 1

I 1

P 3

S 1

E 1

S 1

Definition

A closed curve, the locus of a point such that the sum of the distances from that point to two other fixed points (called the foci of the ellipse) is constant; equivalently, the conic section that is the intersection of a cone with a plane that does not intersect the base of the cone.