ichthyophthiriasis

== English == === Etymology === From Ichthyophthirius +‎ -iasis, from Ancient Greek ἰχθύς (ikhthús, “fish”) + Ancient Greek φθείρ (phtheír, “louse”) + -ius. === Noun === ichthyophthiriasis (usually uncountable, plural ichthyophthiriases) (ichthyology) A parasitic infection of freshwater fish caused by the ciliate Ichthyophthirius multifiliis. ==== Synonyms ==== ich white-spot disease ==== Translations ==== ==== See also ==== cryptocaryosis, marine ich