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Definitions of blastosphere
  1. noun
    early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs

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Parts of blastosphere
  • "blastocele"
  • "trophoblast"
  • "blastocoel"
  • "blastocoele"
  • "cleavage cavity"
  • "segmentation cavity"
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