- the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane.
- the diffusion of fluids through membranes or porous partitions.Compare endosmosis, exosmosis.
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Origin of osmosis
OTHER WORDS FROM osmosis
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Example sentences from the Web for osmosis
Without the process of osmosis we should be unable to use much of the food we eat.
I do believe in the osmosis of evil, in the diffusion of villainy, in the corruption of the soul.After the Rain|Sam Vaknin
The first experiment in physiogeny was the discovery of osmosis by the Abb Nollet in 1748.The Mechanism of Life|Stphane Leduc
Nourishment passes through them by a simple process of osmosis.Embryology|Gerald R. Leighton
In simple animals, as the sponge and hydra, no such organs are needed, the fluid food passing from cell to cell by osmosis.