macracanthorhynchiasis

noun

mac·​ra·​can·​tho·​rhyn·​chi·​a·​sis ˌmak-rə-ˌkan(t)-thə-riŋ-ˈkī-ə-səs 

plural macracanthorhynchiases -ˌsēz 

: infestation with or disease caused by an acanthocephalan worm of the genus Macracanthorhynchus