epiphysiolysis

noun
epiph·​y·​si·​ol·​y·​sis | \ -ˈäl-ə-səs How to pronounce epiphysiolysis (audio) \
plural epiphysiolyses\ -​ˌsēz How to pronounce epiphysiolyses (audio) \

Medical Definition of epiphysiolysis

: abnormal separation of an epiphysis from the bone shaft