Noun
The larva of a chironomid midge in the (family Chironomidae).
Any polychete worm in the genus Glycera.
The blackworm (Lumbriculus variegatus).
The roundworm Strongylus vulgaris, a common parasite of horses.
The parasitic roundworm Angiostrongylus cantonensis.
Source: en.wiktionary.org