Having an annular form or shape.
Describes a mushroom with an annulus on the stipe.
Describes a fern sporangium that has an annulus.
One of the Annulata.
Having the shape of an oval.
Of or pertaining to an ovum.
A thing having such a shape, such as an arena.
In a projective plane, a set of points such that no three are collinear and there is a unique tangent line at each point.
An elongated round shape resembling an egg or ellipse.
A sports field, typically but not exclusively oval in shape.