noun
a type of parasitic protozoan belonging to the class Actinomyxidia
-
The actinomyxidian parasite infects the gills of fish, causing respiratory problems.
-
I heard that actinomyxidian can really mess up a fish's breathing.
-
Actinomyxidian is like the ultimate fish gill invader.
-
The actinomyxidian parasite spreads through the fish population like wildfire.