dialysis Save Lewis & Short DMLBS dĭălysis, is, f., = διάλυσις, rhet. t. t., a separation, Rutil. Lup. 1, 15, p. 52. dialysis [CL < διάλυσις] , (in etym. gl.) resolution. Gerv. Melkley AV 37 (v. dialyton).