from the GNU version of the Collaborative International Dictionary of English
- n. A kind of annelid larva with a circle of cilia around the head.
from The Century Dictionary and Cyclopedia
- A group of polychætous annelids, the ciliated free-swimming larvæ of which have a row of cilia in front of the mouth at some distance from the anterior end of the body, as the larva of Polynoë.
Sorry, no etymologies found.