osmotic pressure Quick reference
The Oxford Dictionary of Sports Science & Medicine (3 ed.)
... pressure The pressure needed to prevent the osmotic movement of water or another solvent though a semipermeable membrane ( see osmosis...
osmotic pressure Quick reference
A Dictionary of Mechanical Engineering (2 ed.)
...osmotic pressure (Unit Pa) The pressure difference across a semipermeable membrane required to prevent osmosis...
osmotic pressure n. Quick reference
A Dictionary of Nursing (8 ed.)
... pressure n. the pressure by which water is drawn into a solution through a semipermeable membrane; the more concentrated the solution, the greater its osmotic pressure...
osmotic pressure Quick reference
A Dictionary of Zoology (5 ed.)
... pressure The pressure needed to prevent the passage of water or other pure solvent through a semi-permeable membrane separating the solvent from the solution. Osmotic pressure rises with an increase in concentration of the solution. Where two solutions of different substances or concentrations are separated by a semi-permeable membrane, the solvent will move to equalize osmotic pressure within the...
osmotic pressure Quick reference
A Dictionary of Biomedicine (2 ed.)
...osmotic pressure The pressure required to prevent osmosis (solvent flow) across a semipermeable membrane separating two solutions of different solute...
osmotic pressure Quick reference
A Dictionary of Plant Sciences (4 ed.)
... pressure The pressure that is needed to prevent the passage of water or another pure solvent through a semi -permeable membrane separating the solvent from the solution. Osmotic pressure rises with an increase in concentration of the solution. Where two solutions of different substances or concentrations are separated by a semi-permeable membrane, the solvent will move to equalize osmotic pressure within the system. http://www.ausetute.com.au/osmoticp.html Tutorial on osmotic ...
osmotic pressure Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
... pressure symbol : π ; the excess hydrostatic pressure that must be applied to a solution in order to reduce to zero the net flow of pure solvent into it by osmosis. The osmotic pressure of a dilute solution is equal to the pressure the solute would exert if it could exist as a gas at the same temperature, T , and the same amount‐of‐substance concentration, c ; thus it may be expressed by a relation analogous to the gas equation, i.e. ∏ = ν cRT where ν is the (average) number of particles into which one solute molecule is dissociated under the...
osmotic pressure n. Quick reference
A Dictionary of Psychology (4 ed.)
... pressure n . The pressure exerted by a solution through the motion of its molecules, measured according to the pressure required to prevent osmosis of the pure solvent into it. See also hypertonic ( 2 ) , hypotonic ( 2 ) , isotonic ( 2 ) , osmoreceptor ( 2 ) , sodium pump...
osmotic pressure Quick reference
A Dictionary of Ecology (5 ed.)
... pressure The pressure that is needed to prevent the passage of water or another pure solvent through a semi-permeable membrane separating the solvent from the solution. Osmotic pressure rises with an increase in concentration of the solution. Where two solutions of different substances or concentrations are separated by a semi-permeable membrane, the solvent will move to equalize osmotic pressure within the system. The concept has been largely replaced by that of water potential...
osmotic pressure Quick reference
A Dictionary of Food and Nutrition (4 ed.)
... pressure The pressure required to prevent the passage of water through a semi-permeable membrane ( see membrane, semi-permeable ) from a region of low concentration of solutes to one of higher concentration, by osmosis...
colloid osmotic pressure Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
...osmotic pressure that part of the osmotic pressure exerted by a solution that is due to dissolved colloids. See osmotic pressure (def....
osmotic pressure Reference library
The New Oxford Dictionary for Scientific Writers and Editors (2 ed.)
... pressure Symbol: Π (Greek cap. pi) Abbrev.: OP The pressure required to prevent the flow of a pure solvent into a solution across a semipermeable membrane. The *SI unit is the *pascal . In biology, it was formerly used in calculations of water relations, but these are now expressed in terms of osmotic potential ( see water potential...