'Threadworm' definitions:

Definition of 'threadworm'

(from WordNet)
noun
Small threadlike worm infesting human intestines and rectum especially in children [syn: pinworm, threadworm, Enterobius vermicularis]

Definition of 'Threadworm'

From: GCIDE
  • Threadworm \Thread"worm`\, n. (Zool.) Any long, slender nematode worm, especially the pinworm and filaria. [1913 Webster]