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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Uniovulate :: Uniovulate (a.) Containing but one ovule.

Abortive :: Abortive (v.) Imperfectly formed or developed; rudimentary; sterile; as, an abortive organ, stamen, ovule, etc..

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

Gemmule :: Gemmule (n.) An ovule.

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

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

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

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

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

Orthotropous :: Orthotropous (a.) Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.

Pendulous :: Pendulous (a.) Inclined or hanging downwards, as a flower on a recurved stalk, or an ovule which hangs from the upper part of the ovary..

Pistil :: Pistil (n.) The seed-bearing organ of a flower. It consists of an ovary, containing the ovules or rudimentary seeds, and a stigma, which is commonly raised on an elongated portion called a style. When composed of one carpel a pistil is simple; when composed of several, it is compound. See Illust. of Flower, and Ovary..

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

Oospore :: Oospore (n.) A fertilized oosphere in the ovule of a flowering plant.

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..

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

Placenta :: Placenta (n.) The part of a pistil or fruit to which the ovules or seeds are attached.

Rhaphe :: Rhaphe (n.) The continuation of the seed stalk along the side of an anatropous ovule or seed, forming a ridge or seam..

Ovuliferous :: Ovuliferous (a.) Producing ovules.