Parascaris
noun
Par·as·ca·ris
(ˈ)par-ˈas-kə-rəs 
: a genus of nematode worms of the family Ascarididae including a large roundworm (P. equorum) that is parasitic in horses
Cite this Entry
“Parascaris.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Parascaris. Accessed 26 Nov. 2025.
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