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germinal
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- Germinal - a. - Pertaining or belonging to a germ; as, the germinal vesicle.
- Germinal - n. - The seventh month of the French republican calendar [1792 -- 1806]. It began March 21 and ended April 19. See VendEmiaire.
- Disk - n. - A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
- Disc - n. - A circular structure either in plants or animals; as, a blood disc, a germinal disc, etc. Same as Disk.
- Spermosphere - n. - A mass or ball of cells formed by the repeated division of a male germinal cell (spermospore), each constituent cell (spermoblast) of which is converted into a spermatozoid; a spermatogemma.
- 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.
- Bioplasm - n. - A name suggested by Dr. Beale for the germinal matter supposed to be essential to the functions of all living beings; the material through which every form of life manifests itself; unaltered protoplasm.
- Blastoderm - n. - The germinal membrane in an ovum, from which the embryo is developed.
- Cytoblast - n. - The nucleus of a cell; the germinal or active spot of a cellule, through or in which cell development takes place.
- Pro thyalosoma - n. - The investing portion, or spherical envelope, surrounding the eccentric germinal spot of the germinal vesicle.
- Blastocyst - n. - The germinal vesicle.
- Holoblastic - a. - Undergoing complete segmentation; composed entirely of germinal matter, the whole of the yolk undergoing fission; -- opposed to meroblastic.
- Spermospore - n. - The male germinal or seminal cell, from the breaking up of which the spermoblasts are formed and ultimately the spermatozoids; a spermatospore.
- 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.
- Triploblastic - a. - Of, pertaining to, or designating, that condition of the ovum in which there are three primary germinal layers, or in which the blastoderm splits into three layers.
- Meroblastic - a. - Consisting only in part of germinal matter; characterized by partial segmentation only; as, meroblastic ova, in which a portion of the yolk only undergoes fission; meroblastic segmentation; -- opposed to holoblastic.
- Diploblastic - a. - Characterizing the ovum when it has two primary germinal layers.
- Ovococcus - n. - A germinal vesicle.
- Holoblast - n. - an ovum composed entirely of germinal matter. See Meroblast.
- Homodermy - n. - Homology of the germinal layers.