O"ö*sphere (-sfr), n. [Gr. &?; an egg + E. sphere.]

1. (Bot.) An unfertilized, rounded mass of protoplasm, produced in an

oögonium.

After being fertilized by the access of antherozoids it becomes covered

with a cell wall and develops into an oöspore, which may grow into a

new plant like the parent.

2. (Bot.) An analogous mass of protoplasm in the ovule of a flowering

plant; an embryonic vesicle. Goodale.

||O`ö*spo*ran"gi*um (?), n.; pl. L. Oösporangia (#), E. Oösporangiums

||(#). [NL., fr. Gr. &?; an egg + &?; vessel.] (Bot.) An oögonium;

||also, a case containing oval or rounded spores of some other kind

||than oöspores.

O"ö*spore (?), n. [Gr. &?; an egg + &?; a seed.] (Bot.) (a) A special

kind of spore resulting from the fertilization of an oösphere by

antherozoids. (b) A fertilized oösphere in the ovule of a flowering

plant.

O`ö*spor"ic (?), a. (Bot.) Of or pertaining to an oöspore.

O*ös"te*gite (?), n. [Gr. &?; + &?; a roof.] (Zoöl.) One of the plates

which in some Crustacea inclose a cavity wherein the eggs are hatched.

||O`ö*the"ca (?), n.; pl. Oöthecæ (#). [NL., fr. Gr. &?; an egg + &?; a

||case.] (Zoöl.) An egg case, especially those of many kinds of

||mollusks, and of some insects, as the cockroach. Cf. Oœcium.

{ O*öt"*ooid (?), O*öt"o*coid (?), } n. [Gr. &?; laying eggs (&?; egg +

&?; a bearing, &?; to bear) + -oid.] (Zoöl.) A half oviparous, or an

oviparous, mammal; a marsupial or monotreme.

O"ö*type (?), n. [Gr. &?; + - type.] (Zoöl.) The part of the oviduct of

certain trematode worms in which the ova are completed and furnished

with a shell.

Ooze (?), n. [OE. wose, AS. wase dirt, mire, mud, akin to w&?;s juice,

ooze, Icel. vs wetness, OHG. waso turf, sod, G. wasen.] 1. Soft mud or

slime; earth so wet as to flow gently, or easily yield to pressure. "My

son i' the ooze is bedded." Shak.

The Gutenberg Webster's Unabridged Dictionary: Section M, N, and O · 第 1753 / 2147 题