Sarcosporidia

noun plural

Sar·​co·​spo·​rid·​ia ˌsär-kō-spə-ˈrid-ē-ə 

: an order of a subclass (Acnidosporidia) of sporozoans that comprises imperfectly known parasites of the muscles of vertebrates and includes the genus Sarcocystis

sarcosporidian

-ē-ən 

adjective or noun