Main Entry: pin·worm

Pronunciation: \-ˌwərm\

Function: noun

Date: circa 1864

1 : any of numerous small nematode worms (family Oxyuridae) that infest the intestines and especially the cecum of various vertebrates; especially : a worm (Enterobius vermicularis) parasitic in humans
2 : any of several rather slender insect larvae that burrow in plant tissue