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.

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.

<! p. 1021 !>

{ O`val*bu"min (?), O`val*bu"men (?), } n. [Ovum + albumin.] (Physiol.

Chem.) The albumin from white of eggs; egg albumin; -- in distinction

from serum albumin. See Albumin.

O*val"i*form (?), a. [Oval + -form.] Having the form of an egg; having

a figure such that any section in the direction of the shorter diameter

will be circular, and any in the direction of the longer diameter will

be oval.

O"val*ly (?), adv. In an oval form.

O"vant (?), a. [L. ovans triumphant, p. pr. of ovare to exult.]

Exultant. [Obs.] Holland.

{ O*va"ri*an (?), O*va"ri*al (?), } a. Of or pertaining to an ovary.

O*va"ri*ole (?), n. (Zoöl.) One of the tubes of which the ovaries of

most insects are composed.

O*va`ri*ot"o*mist (?), n. One who performs, or is skilled in,

ovariotomy.

O*va`ri*ot"o*my (?), n. [Ovarium + Gr. &?; to cut.] (Surg.) The

operation of removing one or both of the ovaries; oöphorectomy.

O*va"ri*ous (?), a. Consisting of eggs; as, ovarious food. [R.]

Thomson.

||O`va*ri"tis (?), n. [NL. See Ovarium, and -itis.] (Med.) Inflammation

||of the ovaries.

||O*va"ri*um (?), n.; pl. L. Ovaria (#), E. Ovariums (#). [NL.] An

||ovary. See Ovary.

O"va*ry (?), n.; pl. Ovaries (#). [NL. ovarium, fr. L. ovum egg: cf. F.

ovaire. See Oval.] 1. (Bot.) That part of the pistil which contains the

seed, and in most flowering plants develops into the fruit. See Illust.

of Flower.

2. (Zoöl. & Anat.) The essential female reproductive organ in which the

ova are produced. See Illust. of Discophora.

The Gutenberg Webster's Unabridged Dictionary: Section M, N, and O · 第 2020 / 2147 题