fibrillogenesis

noun
fi·​bril·​lo·​gen·​e·​sis | \ ˌfib-rə-ˌlō-ˈjen-ə-səs How to pronounce fibrillogenesis (audio) , ˌfīb- How to pronounce fibrillogenesis (audio) \
plural fibrillogeneses\ -​ˌsēz How to pronounce fibrillogeneses (audio) \

Medical Definition of fibrillogenesis

: the development of fibrils