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.
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..