noun
- plural of blastula; early embryonic stages consisting of a hollow ball of cells
Usage: biology; developmental biology
Examples
- The researcher studied blastulas from different species to compare early development.
- Blastulas form after several rounds of cell division following fertilization.
- The hollow cavity inside blastulas is called the blastocoel.
- Scientists can manipulate blastulas in the laboratory to study gene expression.
- Blastulas eventually develop into more complex embryonic structures.
- The formation of blastulas is a critical step in animal development.