**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.

© Webster 1913.

**O"val**, n.

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.

<-- Illustr. of Cassinian Oval -->

© Webster 1913.