VariousWords beta
Related Terms:
blastocyte
layer
discoblastula
invaginate
gastrulation
blastular
animal pole
blastosphere
spherical
vegetal pole
epiblast
pharyngula
blastulation
coeloblastula
embryo
stereoblastula
blastocyst
triploblasty
archiblastula
morula
ingression
amphiblastula
cell
blastocoel
Definitions:
Noun
blastula
blastosphere
Definition: 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
Definition: An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.