blastosphere
1. [ noun ] (zoology,embryology) the blastula of mammals
Synonyms: blastocyst
Related terms: blastula trophoblast
2. [ noun ] (zoology,embryology) 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
Synonyms: blastodermic_vesicle blastula
Related terms: embryo blastocyst blastocoel
Similar spelling:   blastospheric
  blastocoele
  blastomycete
  blastomycosis
  blastopore
  blastomere
  blastoderm
  blastocyte
  blastocoel
  blastocele
  Blastomyces
  blastomeric
  blue_stone
  blastodermic
  blastocytoma
  blastocoelic
  Blackstone