Definition of blastula in English:
blastula
nounPlural blastulae, Plural blastulas ˈblastjʊləˈblæstʃələ
Embryology An animal embryo at the early stage of development when it is a hollow ball of cells.
Example sentencesExamples
- A lot of research has gone into answering that, and determining the earliest stage at which the blastula breaks symmetry.
- Gastrulation in its broadest sense is the reorganization of the cells of the blastula to form a multilayered embryo, the gastrula.
- With time, cells gradually become determined, so that similar cells taken from later-stage blastulas and early gastrulas develop according to their fate at the time of transplantation.
- Embryos treated at lower concentrations showed delayed gastrulation and those treated at higher concentrations developed to blastulae having abnormal blastocoels with excess cells.
- How is it possible that in the past six months, this microscopic blastula has transformed into a being with its own organs, spinal cord and brain?
Origin
Late 19th century: modern Latin, from Greek blastos 'sprout'.