nephroptosis

noun
neph·​rop·​to·​sis | \ ˌnef-ˌräp-ˈtō-səs How to pronounce nephroptosis (audio) \
plural nephroptoses\ -​ˌsēz How to pronounce nephroptoses (audio) \

Medical Definition of nephroptosis

: abnormal mobility of the kidney : floating kidney