ichthyophthirius
noun
ich·thy·oph·thir·i·us
| \ ˌik-thē-äf-ˈthir-ē-əs
\
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Medical Definition of ichthyophthirius
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