After (complete or incomplete)
dialysis two solutions are obtained. The one free from
colloidal material is called dialysate; the other one, containing the
colloidal particles may be called
retentate,
dialysis residue, or simply residue, but should not be called dialysate.
Source:
PAC, 1972, 31, 577
(Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry)
on page 608
