histopathogenesis

noun
his·​to·​patho·​gen·​e·​sis | \ ˌhis-tə-ˌpath-ə-ˈjen-ə-səs How to pronounce histopathogenesis (audio) \
plural histopathogeneses\ -​ˌsēz How to pronounce histopathogeneses (audio) \

Medical Definition of histopathogenesis

: the origin and development of diseased tissue