The Collaborative International Dictionary of English v.0.48:
Oval \O"val\, a. [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.
3. (Bot.) Broadly 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.