蟯蟲 [蛲虫]

Jyutping jiu4 cung4
Pinyin náo chóng

Definitions (CC-CEDICT)
  1. parasitic worm
  2. human pinworm (Enterobius vermicularis)
Definitions (Wiktionary)
  1. noun
    pinworm
    (syn.) 粪口虫, 糞口蟲