mor·u·la 
(môryə-lə, môrə-)
(môryə-lə, môrə-)n. pl. mor·u·lae (-lē′)
The spherical embryonic mass of blastomeres formed before the blastula and resulting from cleavage of the fertilized ovum.
[New Latin mōrula, feminine diminutive of Latin mōrum, mulberry.]
moru·lar adj.
mor′u·lation n.