Calymmatobacterium

noun

Ca·​lym·​ma·​to·​bac·​te·​ri·​um kə-ˌlim-ət-ō-bak-ˈtir-ē-əm 

: a former genus of bacteria consisting of a single species (C. granulomatis) that is the causative agent of granuloma inguinale and is now classified in the genus Klebsiella (K. granulomatis) see donovan body