1
capitalized
: a genus (the type of the family Oxyuridae) of parasitic nematodes with a long slender tail and a well-developed posterior pharyngeal enlargement
2
: any nematode worm of the genus Oxyuris or a related genus (as Enterobius) : pinworm
Cite this Entry
“Oxyuris.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/oxyuris. Accessed 4 Nov. 2025.
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