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Entoplasm :: Entoplasm (n.) The inner granular layer of protoplasm in a developing ovum.

Ectental :: Ectental (a.) Relating to, or connected with, the two primitive germ layers, the ectoderm and ectoderm; as, the ectental line or line of juncture of the two layers in the segmentation of the ovum..

Vitellus :: Vitellus (n.) The contents or substance of the ovum; egg yolk. See Illust. of Ovum.

Incapsulation :: Incapsulation (n.) The process of becoming, or the state or condition of being, incapsulated; as, incapsulation of the ovum in the uterus..

Ectoplasm :: Ectoplasm (n.) The outer transparent layer of protoplasm in a developing ovum.

Pseudovum :: Pseudovum (n.) An egglike germ produced by the agamic females of some insects and other animals, and by the larvae of certain insects. It is capable of development without fertilization. See Illust. of Paedogenesis..

Ovum :: Ovum (n.) 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..

Impregnate :: Impregnate (v. t.) To come into contact with (an ovum or egg) so as to cause impregnation; to fertilize; to fecundate.

Fecundate :: Fecundate (v. t.) To render fruitful or prolific; to impregnate; as, in flowers the pollen fecundates the ovum through the stigma..

Micropyle :: Micropyle (n.) An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted..

Novum :: Novum (n.) A game at dice, properly called novem quinque (L., nine five), the two principal throws being nine and five..

Micromere :: Micromere (n.) One of the smaller cells, or blastomeres, resulting from the complete segmentation of a telolecithal ovum..

Nucleoplasmic :: Nucleoplasmic (a.) Of or pertaining to nucleoplasm; -- esp. applied to a body formed in the developing ovum from the plasma of the nucleus of the germinal vesicle.

Morula :: Morula (n.) The sphere or globular mass of cells (blastomeres), formed by the clevage of the ovum or egg in the first stages of its development; -- called also mulberry mass, segmentation sphere, and blastosphere. See Segmentation..

Centrolecithal :: Centrolecithal (a.) Having the food yolk placed at the center of the ovum, segmentation being either regular or unequal..

Meroblast :: Meroblast (n.) An ovum, as that of a mammal, only partially composed of germinal matter, that is, consisting of both a germinal portion and an albuminous or nutritive one; -- opposed to holoblast..

Blastosphere :: Blastosphere (n.) The hollow globe or sphere formed by the arrangement of the blastomeres on the periphery of an impregnated ovum.

Ovums :: Ovums (pl. ) of Ovu.

Diploblastic :: Diploblastic (a.) Characterizing the ovum when it has two primary germinal layers.

Blastide :: Blastide (n.) A small, clear space in the segments of the ovum, the precursor of the nucleus..

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