Engelsk navneord: gastrula | |||
| 1. | gastrula (om dyr) double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm | ||
| Mindre specifikke termer | conceptus, embryo, fertilized egg | ||
| Omfatter disse specifikke termer | archenteron | ||