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- The process by which solvent molecules pass through a semipermeable membrane from a dilute solution into a more concentrated solution.
- diffusion of substances through a semipermeable membrane
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
- The passage of a liquid from a weak solution to a more concentrated solution across a semipermeable membrane that allows passage of the solvent (water) but not the dissolved solids.
Source: Terms of the Environment