any one of a few worms associated with phylum Nematoda, having unsegmented, cylindrical figures, often narrowing at each end, and including parasitic forms including the hookworm and pinworm. Also known as roundworm.
A small invertebrate animal of the phylum Nematoda.
Any worm of the phylum Nematoda; a roundworm; -- these are typically unsegmented worms having a cylindrical elongated human anatomy. They may stay easily in earth or water, or as parasites in flowers or pets.
Same as nematoid.
unsegmented worms with elongated rounded body pointed at both ends; mostly free-living many tend to be parasitic