blastocele

/ˈblæstəˌsil/
noun
  1. The fluid-filled cavity inside a blastula (an early stage of an embryo).
    • The blastocele forms as the embryo develops into a hollow ball of cells.
    • The size of the blastocele can affect the success of embryonic implantation.
    • Scientists study the blastocele to understand early cell differentiation.
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