What is the meaning of OOS. Phrases containing OOS
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OOS
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n.
One of the plates which in some Crustacea inclose a cavity wherein the eggs are hatched.
n.
A special kind of spore resulting from the fertilization of an oosphere by antherozoids.
a.
Of or pertaining to an oospore.
n.
A fertilized oosphere in the ovule of a flowering plant.
n.
An oogonium; also, a case containing oval or rounded spores of some other kind than oospores.
n.
A special cell in certain cryptogamous plants containing oospheres, as in the rockweeds (Fucus), and the orders Vaucherieae and Peronosporeae.
n.
The ovum, after fusion with the spermatozoon in impregnation.
n.
Any plant of a proposed class or grand division (collectively termed oophytes or Oophyta), which have their sexual reproduction accomplished by motile antherozoids acting on oospheres, either while included in their oogonia or after exclusion.
a.
Properly, belonging to an order of alga: (Fucoideae) which are blackish in color, and produce oospores which are not fertilized until they have escaped from the conceptacle. The common rockweeds and the gulfweed (Sargassum) are fucoid in character.
n.
An unfertilized, rounded mass of protoplasm, produced in an oogonium.
n.
The formation of a bud in place of a fertilized ovule or oospore.
n.
An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle.
pl.
of Oosporangium
pl.
of Oosporangium
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