effective osmotic pressure


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ef·fec·tive os·mot·ic pres·sure

that part of the total osmotic pressure of a solution that governs the tendency of its solvent to pass across a boundary, usually a semipermeable membrane; it is commonly represented by the product of the total osmotic pressure of the solution and the ratio (corrected for activities) of the number of dissolved particles that do not permeate the bounding membrane to the total number of particles in the solution; equivalent in meaning to tonicity; commonly expressed in equivalent units of osmolality rather than pressure itself.

effective osmotic pressure

the part of total osmotic pressure of a solution that determines the tendency of the solvent to pass through a boundary, such as a semipermeable membrane.

ef·fec·tive os·mot·ic pres·sure

(e-fek'tiv oz-mot'ik presh'ŭr)
That part of the total osmotic pressure of a solution that governs the tendency of its solvent to pass across a boundary, usually a semipermeable membrane.

effective osmotic pressure

That portion of the total osmotic pressure of a solution that determines the tendency of the solvent to pass through a membrane, usually one that is semipermeable. The tendency is for the solvent to pass from a solution containing a high concentration of the solute to the side of the membrane with the low concentration.
Synonym: threshold pressure
See also: pressure
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