from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. lacking vertebral centra
from The Century Dictionary and Cyclopedia
- Without a center; specifically, noting a condition of the vertebral column found in some batrachians and fishes, in which bony neural arches are associated with a persistent notochord which shows no trace of segmentation: said also of cells in which a centrosome or centrosphere cannot be detected.
Sorry, no etymologies found.