Main Entry: ich·thy·oph·thir·i·us

Pronunciation: \ˌik-thē-äf-ˈthir-ē-əs\

Function: noun

1 capitalized : a genus of oval ciliates (order Holotricha) that are included in a single species (I. multifiliis) and are parasitic in the skin of various freshwater fishes where they encyst and multiply causing a severe and sometimes fatal inflammation
2 : ich