semipermeable membrane

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semipermeable membrane

[¦sem·i′pər·mē·ə·bəl ′mem‚brān]
(physics)
A membrane which allows a solvent to pass through it, but not certain dissolved or colloidal substances.
References in periodicals archive ?
The importance of the resin inside the cell pair compartments is that it acts as a conductor, enabling the electrical current to coerce the captured cations and anions through the resin and selectively permeable membranes for concentration and removal in the concentrate streams.
The cornerstone technology to turn this concept into reality is the selectively permeable membrane, which scientists are developing and testing at the U.
The selectively permeable technology is very thin and light, it keeps the water and the chemical agents out," he said.

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