The spherical embryonic mass of blastomeres created ahead of the blastula and resulting from cleavage associated with fertilized ovum.
A spherical mass of blastomeres that types following the splitting of a zygote; it becomes the blastula.
The world or globular size of cells (blastomeres), formed because of the clevage of this ovum or egg in the 1st phases of the development; -- labeled as in addition mulberry mass, segmentation sphere, and blastosphere. See segmentation.
In embryology, the condition (resembling a mulberry) of an ovum after total segmentation of vitellus or yolk and ahead of the formation of a blastula, once the items tend to be a mass of cells derived by cleavage of original and successively formed nuclei; a mulberry-mass of blastomeres or cleavage-cells. See monerula, blastula, gastrula, and cut under gastrulation.
In pathology, identical to button-scurvy (which see, under scurvy).
a good mass of blastomeres that types if the zygote splits; develops in to the blastula