- any small, slender worm of the family Trichostrongylidae, parasitic in the alimentary canals of various animals.
Origin of hairworm
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Examples from the Web for hairworm
Here, too, comes that "hairworm" (Gordius), which most country folks call "hair eel" or "hair snake."Zoology: The Science of Animal Life
- any hairlike nematode worm of the family Trichostrongylidae, such as the stomach worm, parasitic in the intestines of vertebrates
- Also called: horsehair worm any very thin long worm of the phylum (or class) Nematomorpha, the larvae of which are parasitic in arthropods