A membrane that allows some but not all of the components in a mixture to pass through it. Semipermeable membranes are used in dialysis.
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http://antoine.frostburg.edu/chem/senese/101/glossary/s.shtml
A semipermeable membrane, also termed a selectively permeable membrane, a partially permeable membrane or a differentially permeable membrane, is a type of biological membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized `facilitated diffusion`. Prof. Sidney Loeb and Srinivasa Sourirajan .....
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http://en.wikipedia.org/wiki/Semipermeable_membrane
(from the article `cardiovascular disease`) The capillaries are freely permeable to water and small molecules but ordinarily are not highly permeable to proteins and other materials. In some ... This is a separation technique in which a semipermeable membrane is placed between two solutions containing the same solvent. The membrane allo...
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http://www.britannica.com/eb/a-z/s/63
<biology, physiology> A membrane that is selectively permeable to only one (or a few) solutes. ... The potential developed across a membrane permeable to only one ionic species is given by the Nernst equation for the species: this is the basis for the operation of ion selective electrodes. ... (18 Nov 1997) ...
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one permitting passage through it of some but not all substances.
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A membrane that is selectively permeable to only one (or a few) solutes. The potential developed across a membrane permeable to only one ionic species is given by the Nernst equation for the species: this is the basis for the operation of ion-selective electrodes.
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http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Definitions: 1. a membrane that is relatively permeable to the solvent but relatively impermeable to all or at least some of the solutes in either or both of the solutions separated by the membrane.
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http://www.medilexicon.com/medicaldictionary.php?t=54003
(sem;e-per;me-ua-b'l) A membrane with pores of a size that permits the passage of solvent and some solute molecules while restricting the passage of other solute molecules.
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http://www.mhhe.com/biosci/abio/glossary.mhtml
In chemistry, a semipermeable membrane is a membrane that allows water and crystalloids to pass through but holds back colloids.
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http://www.probertencyclopaedia.com/browse/GS.HTM
[
n] - a membrane (as a cell membrane) that allows some molecule to pass through but not others
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http://www.webdictionary.co.uk/definition.php?query=semipermeable%20membran
noun a membrane (as a cell membrane) that allows some molecule to pass through but not others
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https://www.encyclo.co.uk/local/20974
A membrane that allows water and small molecules to pass through it but prevents passage of large molecules such as colloids. The peritoneal membrane lining the abdominal cavity is an example of a semipermeable membrane.
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https://www.encyclo.co.uk/local/22445
No exact match found.
