1. Unsegmented worms: roundworms; threadworms; eelworms
   - phylum Nematoda, Aschelminthes, phylum Aschelminthes

Type of: phylum

Part of: animal kingdom, Animalia, kingdom Animalia

Encyclopedia: Nematoda

• curvaton
• curvature
• curve
• uterine contraction
• uterine tube
• uterine vein
• uterus
• Utica
• utile
• utilisable
• utilisation
• utilise
• utilised
• utiliser
• utilitarian
• utilitarianism
• utility
• utility bond
• utility man
• utility program
• utility revenue bond
• utility room
• utility routine
• utility-grade
• utilizable