balantidiasis

noun

bal·​an·​ti·​di·​a·​sis ˌbal-ən-tə-ˈdī-ə-səs  bə-ˌlan- 

variants also balantidiosis

ˌbal-ən-ˌtid-ē-ˈō-səs 

plural balantidiases also balantidioses -ˌsēz 

: infection with or disease caused by protozoans of the genus Balantidium