noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A parasitic infection of freshwater fish caused by the ciliate Ichthyophthirius multifiliis. uncountable, usually

Synonyms

All synonyms

ichichwhite-spot disease

Etymology

From Ichthyophthirius + -iasis, from Ancient Greek ἰχθύς (ikhthús, “fish”) + Ancient Greek φθείρ (phtheír, “louse”) + -ius.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.