from The Century Dictionary and Cyclopedia
- n. In embryology, that from of metagastrula, or kenogenetic gastrula, which results from surface-cleavage of the egg, or superficial segmentation of the vitellus. Also called bladder-gastrula.
Sorry, no etymologies found.
This is the only material difference between our vesicular gastrula (perigastrula) and the original form of the bell-gastrula