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Noun: blastula (blastulas,blastulae)  blas-chû-lu
  1. 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
    - blastosphere

Derived forms: blastulae, blastulas

Type of: conceptus, embryo, fertilised egg [Brit], fertilized egg

Encyclopedia: Blastula

Nearest

blastomeric
Blastomyces
blastomycete
blastomycosis
blastomycotic
blastoporal
blastopore
blastoporic
blastosphere
blastospheric
blastula
blastular
blat
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blatherskite
Blatta