1. Unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
   "The nematode worm population in the soil indicated its health";
   - nematode, roundworm

Derived forms: nematode worms

Type of: worm

Part of: Aschelminthes, Nematoda, phylum Aschelminthes, phylum Nematoda

Encyclopedia: Nematode worm