from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Pertaining to a blastopore; blastoporic.
from the GNU version of the Collaborative International Dictionary of English
- adj. of or pertaining to a blastopore.
from The Century Dictionary and Cyclopedia
- Of or pertaining to a blastopore; blastoporic.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to a blastopore
Sorry, no etymologies found.
The main assumption was that the neural or blastoporal surface must be homologous throughout the Metazoa, though it was dorsal in the Chordata, ventral in the Annelida and Arthropoda.
He derived the central nervous system of the Chordata from the circumoral ring of the common ancestor by means of the hypothesis that both the pre-blastoporal and the post-blastoporal parts of it disappeared. [