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The Collaborative International Dictionary
blastosphere

Morula \Mor"u*la\, n.; pl. Morul[ae]. [NL., dim. of L. morum a mulberry.] (Biol.) 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.

Wiktionary
blastosphere

n. A blastula

WordNet
blastosphere

n. the blastula of mammals [syn: blastocyst]

Usage examples of "blastosphere".

The ovum—the blastosphere, her enhanced memory whispered to her—was just cells.