Definitions
1.NounAn elongated round shape resembling an ellipse or an egg.
A two-dimensional one.
2.NounA two-dimensional one.
3.NounA three-dimensional one.
4.NounA thing having such a shape, such as an arena.
5.NounA sports field, typically but not exclusively oval in shape.
6.NounIn a projective plane, a set of points such that no three are collinear and there is a unique tangent line at each point.
7.AdjectiveHaving the shape of an oval.
8.AdjectiveOf or pertaining to an ovum."oval conceptions"