from the GNU version of the Collaborative International Dictionary of English
- n.pl. An order of Crinoidea, mostly fossils of the Paleozoic rocks. They were usually roundish or egg-shaped, and often unsymmetrical; some were sessile, others had short stems.
from The Century Dictionary and Cyclopedia
- An order of fossil crinoids: synonymous with Cystoidea (which see).
Sorry, no etymologies found.