morula morula

Definition(s):

  • (n) a solid mass of blastomeres that forms when the zygote splits; develops into the blastula

Usage(s):

  • The first striking change is apparent four days after conception, when a 32-cell clump called the morula (which means "mulberry" in Latin) gives rise to two distinct layers wrapped .
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fathom fathom
/ˈfæ ðəm /