Also found in: Dictionary, Medical, Wikipedia.
Related to hairworm: horsehair worm
hairworm,worm of the phylum NematomorphaNematomorpha
, small (about 230 species) phylum of pseudocoelomates; the horsehair worms. Most are very slender, elongated creatures found in ponds and streams, whose larvae live as parasites in arthropods. They emerge as adults for a brief time, then mate and die.
..... Click the link for more information. .
The common name for about 80 species of worms composing the class Nematomorpha.