Search nephroptosis nephroptosis /nef′rəptō″sis/ [Gk, nephros + ptosis, falling] , a downward displacement or dropping of a kidney. Tweet Telegram VK Random Words tuning fork extracorporeal membrane oxygenator (ECMO) depressor reflex SN2 functional residual capacity (FRC) chronic fatigue syndrome (CFS) holocrine gland heterosis emergency medical technician–intermediate (EMT-I)