oxyuris

noun

oxy·​uris -ˈyu̇r-əs 

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