from the GNU version of the Collaborative International Dictionary of English
- n.pl. A division of ciliated Infusoria having a circle of cilia around the oral disk and sometimes another around the body. It includes the vorticellas. See vorticella.
from The Century Dictionary and Cyclopedia
- An order of ciliate Infusoria, containing those which have a zone of cilia about the body.
Sorry, no etymologies found.