English definition of Ovule

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Definition of ovule

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Ovule (n.) 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..

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Secundine :: Secundine (n.) The second coat, or integument, of an ovule, lying within the primine..

Proembryo :: Proembryo (n.) The series of cells formed in the ovule of a flowering plant after fertilization, but before the formation of the embryo..

Apogamy :: Apogamy (n.) The formation of a bud in place of a fertilized ovule or oospore.

Ovule :: Ovule (n.) An ovum.

Ovuliferous :: Ovuliferous (a.) Producing ovules.

Ovule :: Ovule (n.) 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..

Orthogamy :: Orthogamy (n.) Direct fertilization in plants, as when the pollen fertilizing the ovules comes from the stamens of the same blossom; -- opposed to heterogamy..

Chalaza :: Chalaza (n.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus..

Gymnogen :: Gymnogen (n.) One of a class of plants, so called by Lindley, because the ovules are fertilized by direct contact of the pollen. Same as Gymnosperm..

Podosperm :: Podosperm (n.) The stalk of a seed or ovule.

Prunus :: Prunus (n.) A genus of trees with perigynous rosaceous flowers, and a single two-ovuled carpel which usually becomes a drupe in ripening..

Ovulum :: Ovulum (n.) An ovule.

Nucleus :: Nucleus (n.) An incipient ovule of soft cellular tissue.

Oospere :: Oospere (n.) An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle.

Hemitropous :: Hemitropous (a.) Having the raphe terminating about half way between the chalaza and the orifice; amphitropous; -- said of an ovule.

Monembryony :: Monembryony (n.) The condition of an ovule having but a single embryo.

Spermaphore :: Spermaphore (n.) That part of the ovary from which the ovules arise; the placenta.

Primine :: Primine (n.) The outermost of the two integuments of an ovule.

Ovular :: Ovular (a.) Relating or belonging to an ovule; as, an ovular growth..

Ovulate :: Ovulate (a.) Containing an ovule or ovules.