from the GNU version of the Collaborative International Dictionary of English
- plural proper n. A phylum of worms, having a long, round, and generally smooth body; the roundworms. Called also Nematodea, and more commonly Nematoda. Formerly, it was classed as a taxonomic order.
from The Century Dictionary and Cyclopedia
- An order of Nemathelminthes, or class of Vermes, having a mouth and an alimentary canal and separate sexes, and being usually parasitic; the nematoid worms; the roundworms and threadworms.
Sorry, no etymologies found.
Small specimens have been found beneath the tunica conjunctiva of the eye; and one species of the same genus of _Nematoidea_ infests the cavity of the eye itself. [