VerbarGastrula - Definition - Law Dictionary Home Dictionary Definition verbargastrula

Definition :

An embryonic form having its origin in the invagination or pushing in of the wall of the planula or blastula the blastosphere on one side thus giving rise to a double walled sac with one opening or mouth the blastopore which leads into the cavity the archenteron lined by the inner wall the hypoblast See Illust under Invagination In a more general sense an ideal stage in embryonic development See Gastraeliga