morula

Mor"u*la, n.; pl. Morulæ. Etym: [NL., dim. of L. morum a mulberry.] (Biol.) Defn: 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.

---