semipermeable membrane


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

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 ?
SEOPT was stripped of the semipermeable membrane and the core tablet was placed in volumetric flask containing 100 ml distilled water.
This increase in total energy performance effectiveness, compared to typical sensible energy effectiveness for heat exchangers, makes semipermeable membrane air-to-air exchangers that transfer heat and moisture a better design option to meet the increasing demands for efficient energy use in buildings.
As a scientific term, diffusion is the movement of particles from areas of high concentration to areas of low concentration across a semipermeable membrane.
On the basis of CH, we can see that ancients saw skin as a semipermeable membrane.
compared the presence of vaccinia virus on the external surface of 3 different types of bandages and noted that the semipermeable membrane with gauze had the smallest proportion of recoverable virus compared with the groups that used a Band-Aid or double gauze with adherent tape (6).
The new AGILE[TM] flex system incorporates semipermeable membrane technology that--
Some tubes have an open lumen, and some have a semipermeable membrane.
Tests discerned that the blob had a semipermeable membrane across which diffused chemicals that reacted inside the cell.
Narcotics and explosives easily pass through a semipermeable membrane, but inorganic materials and water vapor cannot.
Few phenomena are so well understood thermodynamically, or so ill understood kinetically, as the osmotic flow of a solvent through a semipermeable membrane.