"roundworm" in the noun sense
1. tinea, ringworm, roundworm
infections of the skin or nails caused by fungi and appearing as itching circular patches
2. nematode, nematode worm, roundworm
unsegmented worms with elongated rounded body pointed at both ends mostly free-living but some are parasitic
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License