Webster’s Revised Unabridged Dictionary · 1913
Morula
Mor′u·la (mŏr′ū·lȧ), n.; pl. Morulæ (#). [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.