any nematode worm, esp Ascaris lumbricoides, a common intestinal parasite of humans and pigs
WordReference Random House Unabridged Dictionary of American English © 2025
round•worm
(round′wûrm′),USA pronunciation n.
- Invertebratesany nematode, esp. Ascaris lumbricoides, that infests the intestine of humans and other mammals.
- round1 + worm 1555–65
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'roundworm' also found in these entries (note: many are not synonyms or translations):