O"vi*cell` (?), n. [Ovum + cell.] (Zoöl) One of the dilatations of the
body wall of Bryozoa in which the ova sometimes undegro the first
stages of their development. See Illust. of Chilostoma.
O*vic"u*lar (?), a. [L. ovum an egg.] (Biol.) Of or pertaining to an
egg.
O"vi*cyst (?), n. [Ovum + cyst.] (Zoöl.) The pouch in which incubation
takes place in some Tunicata.
O*vid"i*an (?), a. Of or pertaining to the Latin poet Ovid; resembling
the style of Ovid.
O`vi*du"cal (?), a. (Anat.) Of or pertaining to oviducts; as, oviducal
glands.
O"vi*duct (?), n. [Ovum + duct: cf. F. oviducte.] (Anat.) A tube, or
duct, for the passage of ova from the ovary to the exterior of the
animal or to the part where further development takes place. In mammals
the oviducts are also called Fallopian tubes.
O*vif"er*ous (?), a. [Ovum + -ferous: cf. F. ovifère.] (Biol.)
Egg-bearing; -- applied particularly to certain receptacles, as in
Crustacea, that retain the eggs after they have been excluded from the
formative organs, until they are hatched.
O"vi*form (?), a. [Ovum + - form: cf. F. oviforme.] (Biol.) Having the
form or figure of an egg; egg-shaped; as, an oviform leaf.
O*vig"er*ons (?), a. [Ovum + -gerous: cf. F. ovigere.] (Biol.) Bearing
eggs; oviferous.
O"vile (?), a. See Ovine.
O"vine (?), a. [L. ovinus, fr. ovis sheep: cf. F. ovine.] Of or
pertaining to sheep; consisting of sheep.
||O*vip"a*ra (?), n. pl. [NL. See Oviparous.] (Zoöl.) An artificial
||division of vertebrates, including those that lay eggs; -- opposed to
||Vivipara.
O`vi*par"i*ty (?), n. [See Oviparous.] (Biol.) Generation by means of
ova. See Generation.
O*vip"a*rous (?), a. [L. oviparus; ovum egg + parere to bring forth:
cf. F. ovipare.] (Physiol.) Producing young from rggs; as, an oviparous
animal, in which the egg is generally separated from the animal, and
hatched after exclusion; -- opposed to viviparous.
O`vi*pos"it (?), v. i. [imp. & p. p. Oviposited; p. pr. & vb. n.
Ovipositing.] [See Ovum, and Posit.] To lay or deposit eggs; -- said
esp. of insects.
O`vi*pos"it, v. t. To deposit or lay (an egg).
{ O`vi*pos"it*ing (?), O`vi*po*si"tion (?), } n. The depositing of
eggs, esp. by insects.
O`vi*pos"i*tor (?), n. [L. ovum an egg + positor a placer, fr. ponere
to place.] (Zoöl.) The organ with which many insects and some other
animals deposit their eggs. Some ichneumon files have a long ovipositor
fitted to pierce the eggs or larvæ of other insects, in order to lay
their own eggs within the same.
O"vi*sac (?), n. [Ovum + sac.] (Anat) (a) A Graafian follicle; any sac
containing an ovum or ova. (b) The inner layer of the fibrous wall of a
Graafian follicle.
O"vist (?), n. (Biol.) Same as Ovulist.
||O`vo*coc"cus (?), n.; pl. Ovococci (#). [Ovum + Gr. &?; grain, seed.]
||(Biol.) A germinal vesicle.
{ O"void (?), O*void"al (?), } a. [Ovum + -oid: cf. F. ovoïde.]
Resembling an egg in shape; egg-shaped; ovate; as, an ovoidal apple.
O"void (?), n. A solid resembling an egg in shape.
O"vo*lo (?), n. [It. ovolo, uovolo, fr. L. ovum an egg. Cf. Ovule.]
(Arch.) A round, convex molding. See Illust. of Column.
In Roman work it is usually a quarter circle in section; in Greek work
it is flatter, and is equivalent to the echinus; that is, it has in
section the elastic curve of the shell of the sea urchin. In mediæval
architecture it is not distinguishable from the multitude of convex
moldings, of all sections, which are used.
O*vol"o*gy (?), n. [Ovum + - logy. Cf. F. ovologie.] That branch of
natural history which treats of the origin and functions of eggs.
O`vo*plas"ma (?), n. [Ovum + plasma.] (Boil.) Yolk; egg yolk. Haeckel.
O`vo*test"tis (?), n. [NL. See Ovum, and Testis.] (Zoöl.) An organ
which produces both ova and spermatozoids; an hermaphrodite gland.
O*vo*vi*vip"a*rous (?), a. [Ovum + viviparous: cf. F. ovovivipare.]
(Biol.) Oviparous, but hatching the egg while it is within the body, as
some fishes and reptiles.
O"vu*lar (?), a. (Biol.) Relating or belonging to an ovule; as, an
ovular growth.
O"vu*la*ry (?), a. (Biol.) Pertaining to ovules.
O"vu*late (?), a. (Biol.) Containing an ovule or ovules.
O`vu*la"tion (?), n. (Phisiol.) The formation of ova or eggs in the
ovary, and the discharge of the same. In the mammalian female the
discharge occurs during menstruation.
O"vule (?), n. [Dim. of L. ovum an egg: cf. F. ovule. Cf. Ovolo,
Ovulum.] (Biol.) (a) The rudiment of a seed. It grows from a placenta,
and consists of a soft nucleus within two delicate coatings. The
attached base of the ovule is the hilum, the coatings are united with
the nucleus at the chalaza, and their minute orifice is the foramen.
(b) An ovum.
O`vu*lif"er*ous (?), a. [Ovule + -ferous.] (biol.) Producing ovules.
O"vu*list (?), n. (Biol.) A believer in the theory (called encasement
theory), current during the last century, that the egg was the real
animal germ, and that at the time of fecundation the spermatozoa simply
gave the impetus which caused the unfolding of the egg, in which all
generations were inclosed one within the other. Also called ovist.
O"vu*lite (?), n. [Ovum + - lite.] A fossil egg.
||O"vu*lum (?), n.; pl. Ovula (#). [NL. See Ovule.] (Biol.) An ovule.
||O"vum (?), n.; pl. L. Ova (#), E. Ovums (#). [L., an egg. See Oval.]
||1. (Biol.) A more or less spherical and transparent mass of granular
||protoplasm, which by a process of multiplication and growth develops
||into a mass of cells, constituting a new individual like the parent;
||an egg, spore, germ, or germ cell. See Illust. of Mycropyle.
The ovum is a typical cell, with a cell wall, cell substance, nucleus,
and nucleolus. In man and the higher animals the cell wall, a
vertically striated membrane, is called the zona pellucida; the cell
contents, the vitellus; the nucleus, the germinal vesicle; and the
nucleolus, the germinal spot. The diameter of the ripe ovum in man and
the domestic animals varies between 1-200 and 1-120 of an inch.
2. (Arch.) One of the series of egg- shaped ornaments into which the
ovolo is often carved. Gwilt.
<! p. 1026 !>
Owch (?), n. See Ouch. [Obs.] Speser.
Owe (?), v. t. [imp. & p. p. Owed (?), (Ought (&?;) obs.); p. pr. & vb.
n. Owing (?).] [OE. owen, awen,aghen, to have, own, have (to do),
hence, owe, AS. gan to have; akin to G. eigen, a., own, Icel. eiga to
have, Dan. eie, Sw. äga, Goth. áigan, Skr. &?;. &?;&?;&?;&?;. Cf.
Ought, v., 2d Own, Fraught.] 1. To possess; to have, as the rightful
owner; to own. [Obs.]
Thou dost here usurp The name thou ow'st not.
Shak.
2. To have or possess, as something derived or bestowed; to be obliged
to ascribe (something to some source); to be indebted or obliged for;
as, he owed his wealth to his father; he owed his victory to his
lieutenants. Milton.
O deem thy fall not owed to man's decree.
Pope.
3. Hence: To have or be under an obigation to restore, pay, or render
(something) in return or compensation for something received; to be
indebted in the sum of; as, the subject owes allegiance; the fortunate
owe assistance to the unfortunate.
The one ought five hundred pence, and the other fifty.
Bible (1551).
A son owes help and honor to his father.
Holyday.
Owe was sometimes followed by an objective clause introduced by the
infinitive. "Ye owen to incline and bow your heart." Chaucer.
4. To have an obligation to (some one) on account of something done or
received; to be indebted to; as, to iwe the grocer for supplies, or a
laborer for services.
Ow"el (?), a. [OF. oel, owel, iwel,ivel, F. égal, fr. L. aequalis.]
(Law) Equal. [Obs.] Burrill.
Ow"el*ty (?), n. [OF. oelté, ivelté.] (Law) Equality; -- sometimes
written ovelty and ovealty. Burrill.
Ow"en (?), a.[See Own.] Own. [Obs.] Chaucer.
Ow"en*ite (?), n. A follower of Robert Owen, who tried to reorganize
society on a socialistic basis, and established an industrial community
on the Clyde, Scotland, and, later, a similar one in Indiana.
O"wher (?), adv. [AS. hwær.] Anywhere. [Obs.] "If he found owher a good
fellow." Chaucer.
Ow`ing (?), p. p. & a. [Used in a passive sense for owed (AS. gen. See
Own).] 1. Had or held under obligation of paying; due.
There is more owing her than is paid.
Shak.
2. Had or experienced as a consequence, result, issue, etc.;
ascribable; -- with to; as, misfortunes are often owing to vices; his
failure was owing to speculations.
Owl (?), n. [AS. le; akin to D. uil, OHG. wila, G. eule, Icel. ugla,
Sw. ugla, Dan. ugle.]
1. (Zoöl.) Any species of raptorial birds of the family Strigidæ. They
have large eyes and ears, and a conspicuous circle of feathers around
each eye. They are mostly nocturnal in their habits.
Some species have erectile tufts of feathers on the head. The feathers
are soft and somewhat downy. The species are numerous. See Barn owl,
Burrowing owl, Eared owl, Hawk owl, Horned owl, Screech owl, Snowy owl,
under Barn, Burrowing, etc.
In the Scriptures the owl is commonly associated with desolation; poets
and story-tellers introduce it as a bird of ill omen. . . . The Greeks
and Romans made it the emblem of wisdom, and sacred to Minerva, -- and
indeed its large head and solemn eyes give it an air of wisdom. Am.
Cyc.