nounWord forms: plural -ses (-ˌsiːz)1. the separation of small molecules from large molecules and colloids in a solution by the selective diffusion of the small molecules through a semipermeable membrane
2. medicine haemodialysis, peritoneal dialysis
Word origin
C16: from Late Latin: a separation, from Greek
dialusis a dissolution, from
dialuein to tear apart, dissolve, from
luein to loosen