dispersion medium

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Related to dispersion medium: dispersed phase


 [me´de-um] (pl. mediums, me´dia) (L.)
1. an agent by which something is accomplished or an impulse is transmitted.
3. a preparation used in treating histologic specimens.
contrast medium a radiopaque substance used in radiography to permit visualization of body structures. Called also contrast agent.
culture medium a substance or preparation used to support the growth of microorganisms or other cells; called also medium.
dioptric media refracting media.
disperse medium dispersive m.
dispersion medium dispersive m.
dispersive medium the continuous phase of a colloid system; the medium in which the particles of the disperse phase are distributed, corresponding to the solvent in a true solution.
refracting media the transparent tissues and fluid in the eye through which light rays pass and by which they are refracted and brought to a focus on the retina.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ex·ter·nal phase

the medium or fluid in which a disperse is suspended.
Farlex Partner Medical Dictionary © Farlex 2012

ex·ter·nal phase

(eks-tĕr'năl fāz)
The medium or fluid in which a disperse is suspended.
Synonym(s): dispersion medium.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The analysis according to group contribution theory suggests that the solubility parameters of the clay surfactant should be close in value to the ones of the solvents used as the initial dispersion medium.
The solvent used as the initial dispersion medium for the clay should be miscible with water.
After the ultimate separation, a part of the dispersion medium is located among the particles from the dispersion phase of the sediment and the emergent.
On the other hand, V = V'+V", where V' is the volume of the dispersion phase in this sediment (emergent) and V" is the volume of the bound dispersion medium of the sediment (emergent).
The 2D SAXS patterns of the latex dispersion were taken at different contrasts with the sucrose content in the dispersion medium ranging between 0 and 60 wt%.
Only the mass density of the dispersion medium [rho.sub.m] is allowed to vary.
quartz) may be ground in the presence of the dispersion medium. Passing a heavy electric current through a cell may lead to the sputtering (crumbling) of an electrode into colloidal particles.
This may be prevented by avoiding the presence of electrolytes in the dispersion medium or by keeping their concentration at a minimum.
where [[eta].sub.0] is the viscosity of the pure dispersion medium and [eta] is the intrinsic viscosity (2.5 for hard spheres).
The reason for the higher maximum [[phi].sub.w] in the latter is that the stabilizing layer for the polymerically stabilized latex does not extend as far into the dispersion medium, enabling more particles to be packed into the same volume of water while maintaining a relatively low viscosity.
After completion of the polymerization period, the reactor content was cooled down to room temperature and centrifuged at 5000 rpm for 5 minutes for the removal of dispersion medium. The PCMS beads were redispersed within 10 mL of ethanol and centrifuged again under similar conditions.
The polarity of dispersion medium was adjusted by mixing methoxyethanol and ethanol at different ratios.