Bioblast :: Bioblast (n.) Same as Bioplast.

Chromoblast :: Chromoblast (n.) An embryonic cell which develops into a pigment cell.

Cnidoblast :: Cnidoblast (n.) One of the cells which, in the Coelenterata, develop into cnidae..

Cytoblast :: Cytoblast (n.) The nucleus of a cell; the germinal or active spot of a cellule, through or in which cell development takes place..

Cytoblastema :: Cytoblastema (n.) See Protoplasm.

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

Discoblastic :: Discoblastic (a.) Applied to a form of egg cleavage seen in osseous fishes, which occurs only in a small disk that separates from the rest of the egg..

Ectoblast :: Ectoblast (n.) The outer layer of the blastoderm; the epiblast; the ectoderm.

Ectoblast :: Ectoblast (n.) The outer envelope of a cell; the cell wall.

Endoblast :: Endoblast (n.) Entoblast; endoplast. See Nucleus,.

Endoblastic :: Endoblastic (a.) Relating to the endoblast; as, the endoblastic layer..

Entoblast :: Entoblast (n.) The inner germ layer; endoderm. See Nucleolus.

Entosthoblast :: Entosthoblast (n.) The granule within the nucleolus or entoblast of a nucleated cell.

Gonoblastid :: Gonoblastid (n.) A reproductive bud of a hydroid; a simple gonophore.

Gonoblastidia :: Gonoblastidia (pl. ) of Gonoblastidiu.

Gonoblastidium :: Gonoblastidium (n.) A blastostyle.

Gymnoblastea :: Gymnoblastea (n. pl.) The Athecata; -- so called because the medusoid buds are not inclosed in a capsule.

Gymnoblastic :: Gymnoblastic (a.) Of or pertaining to the Gymnoblastea.

Haematoblast :: Haematoblast (n.) One of the very minute, disk-shaped bodies found in blood with the ordinary red corpuscles and white corpuscles; a third kind of blood corpuscle, supposed by some to be an early stage in the development of the red corpuscles; -- called also blood plaque, and blood plate..

Holoblast :: Holoblast (n.) an ovum composed entirely of germinal matter. See Meroblast.

Holoblastic :: Holoblastic (a.) Undergoing complete segmentation; composed entirely of germinal matter, the whole of the yolk undergoing fission; -- opposed to meroblastic..

Hypoblast :: Hypoblast (n.) The inner or lower layer of the blastoderm; -- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm..

Hypoblastic :: Hypoblastic (a.) Relating to, or connected with, the hypoblast; as, the hypoic sac..

Idioblast :: Idioblast (n.) An individual cell, differing greatly from its neighbours in regard to size, structure, or contents..

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..

Meroblastic :: 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..

Mesoblast :: Mesoblast (n.) The mesoderm.

Mesoblast :: Mesoblast (n.) The cell nucleus; mesoplast.

Mesoblastic :: Mesoblastic (a.) Relating to the mesoblast; as, the mesoblastic layer..

Nematoblast :: Nematoblast (n.) A spermatocyte or spermoblast.

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