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oval

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Oval \O"val\, adjective [F. ovale, fr. L. ovum egg. Cf. {Egg}, {Ovum}.]

1. Of or pertaining to eggs; done in the egg, or inception; as, oval conceptions. [Obs.]

2. Having the figure of an egg; oblong and curvilinear, with one end broader than the other, or with both ends of about the same breadth; in popular usage, elliptical.

{Oval chuck} (Mech.), a lathe chuck so constructed that work attached to it, and cut by the turning tool in the usual manner, becomes of an oval form.

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Oval \O"val\, noun A body or figure in the shape of an egg, or popularly, of an ellipse.

{Cassinian oval} (Geom.), the locus of a point the product of whose distances from two fixed points is constant; -- so called from Cassini, who first investigated the curve. Thus, in the diagram, if P moves so that P A.P B is constant, the point P describes a Cassinian oval. The locus may consist of a single closed line, as shown by the dotted line, or of two equal ovals about the points A and B. Ovalbumin

From WordNet (r) 3.0 (2006) [wn]:

1: rounded like an egg [syn: {egg-shaped}, {elliptic}, {elliptical}, {oval}, {oval-shaped}, {ovate}, {oviform}, {ovoid}, {prolate}]

noun

1: 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}, {oval}]