oval
adj : rounded like an egg [syn: {egg-shaped}, {elliptic}, {elliptical},
{ovate}, {oviform}, {ovoid}, {prolate}]
n : a closed plane curve resulting from the intersection of a
circular cone and a plane cutting completely through it;
"the sums of the distances from the foci to any point on
an ellipse is constant" [syn: {ellipse}]