in colloid chemistry
The @UT06806@ of a liquid by a @G02600@ or porous substance. It may or may not be accompanied by swelling.
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 615 [Terms] [Paper]