What is "iridovirus"

n. Any of a group of viruses, of the genus (taxlink Iridovirus genus), that show a blue or purple iridescence

Iridovirus is a genus of viruses, in the family Iridoviridae. Insects serve as natural hosts. There are currently only two species in this genus including the type species Invertebrate iridescent virus 6. Diseases associated with this genus include: in mosquitoes, IIV-6 usually causes covert (inapparent) infection that reduces fitness.