A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant, or resulting when a cone is cut by an oblique plane which does not intersect the base.

The planets in our solar system orbit the sun in paths that are shaped like an ellipse.

An object, outline, or design that has the form of an ellipse.

The company’s new logo features a pair of overlapping ellipses.

ellipseadjective

Attributive. Relating to or shaped like an ellipse.

The engineer adjusted the ellipse mirror to focus the beam.