GNU Collaborative International Dictionary of English

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1.       
   ‖Morula , n.; pl. Morulae . [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.
   1913 Webster