noun
- the layer of cells that forms around the yolk of a fertilized egg in early embryonic development
Usage: biology
Examples
- The blastoderm appears as a small disc on the surface of the egg yolk.
- Scientists studied the blastoderm to understand early cell division patterns.
- The blastoderm eventually develops into the embryo’s body layers.
- In bird eggs, the blastoderm is visible as a white spot on the yolk.
- Cell migration within the blastoderm is crucial for proper development.
- The blastoderm contains the genetic material needed for embryo formation.