eelworm
/ˈilˌwɜrm/
noun
- A small, slender worm that lives in soil or water, often a parasite of plants or animals.
- The farmer found eelworms damaging the roots of his potato crop.
- Eelworms are so tiny that you need a microscope to see them clearly.
- Some eelworms help break down dead plants in the soil.