rickettsiosis

noun
rick·​ett·​si·​o·​sis | \ ri-ˌket-sē-ˈō-səs How to pronounce rickettsiosis (audio) \
plural rickettsioses\ -​ˌsēz How to pronounce rickettsioses (audio) \

Medical Definition of rickettsiosis

: infection with or disease caused by a rickettsia a mild rickettsiosis