from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A diffuse network of cells that conducts impulses in all directions from the area stimulated, forming a primitive nervous system in ctenophores, coelenterates, and certain other organisms.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Simplistic and uncentralized nervous system of cnidarians.


Sorry, no etymologies found.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.