emulsion

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emulsion

 [e-mul´shun]
a mixture of two immiscible liquids, one being dispersed throughout the other in small droplets; a colloid system in which both the dispersed phase and the dispersion medium are liquids. Margarine, cold cream, and various medicated ointments are emulsions. In some emulsions the suspended particles tend to join together and settle out; hence the container must be shaken each time the emulsion is used.
film emulsion a dehydrated gel emulsion of light- or radiation-sensitive silver halide that is applied to a suitable base.

e·mul·sion

(ē-mŭl'shŭn),
A system containing two immiscible liquids in which one is dispersed, in the form of small globules (internal phase), throughout the other (external phase) (for example, oil in water [milk] or water in oil [mayonnaise]).
[Mod. L. fr. e-mulgeo, pp. -mulsus, to milk or drain out]

emulsion

/emul·sion/ (e-mul´shun) a mixture of two immiscible liquids, one being dispersed throughout the other in small droplets; a colloid system in which both the dispersed phase and the dispersion medium are liquids.

emulsion

[imul′shən]
Etymology: L, emulgere, to milk out
1 a system consisting of two immiscible liquids, one of which is dispersed in the other in the form of small droplets.
2 (in photography) a composition sensitive to actinic rays of light, consisting of one or more silver halides suspended in gelatin applied in a thin layer to film.

emulsion

Pharmacology A suspension of droplets of one liquid in another–eg, oil, water. See Emulsifier.

e·mul·sion

(ē-mŭl'shŭn)
A system containing two immiscible liquids in which one is dispersed, in the form of very small globules (internal phase), throughout the other (external phase).
[Mod. L. fr. e-mulgeo, pp. -mulsus, to milk or drain out]

emulsion

system containing two immiscible liquids, in which one is dispersed as tiny droplets (internal phase) throughout the other (external phase), by addition of an emulsifying agent
  • oil-in-water emulsion water-based emulsion with oil globules suspended in water

  • water-in-oil emulsion oil-based emulsion with water droplets suspended in oil

e·mul·sion

(ē-mŭl'shŭn)
A system containing two immiscible liquids in which one is dispersed, in the form of small globules, throughout the other.
[Mod. L. fr. e-mulgeo, pp. -mulsus, to milk or drain out]

emulsion (ēmul´shən),

n a colloidal dispersion of one liquid in another. See also suspension.
emulsion, digestive,
n the suspension of fat globules, usually in the bile acid of the small intestine, and their resulting breakdown into smaller particles as part of the digestive process. See also emulsifiers.
emulsion, double,
n a suspension of sensitive silver halide salts impregnated in gelatin and coated on both sides of a radiographic film base.
emulsion, silver,
n a suspension of sensitive silver halide salts impregnated in gelatin and used for coating photographic plates and radiographic films.
emulsion, single,
n a suspension of sensitive silver halide salts im-pregnated in gelatin and coated on only one side of a radiographic film base.

emulsion

a mixture of two immiscible liquids, one being dispersed throughout the other in small droplets; a colloid system in which both the dispersed phase and the dispersion medium are liquids. Margarine, cold cream and various medicated ointments are emulsions. In some emulsions the suspended particles tend to join together and settle out; hence the container must be shaken each time the emulsion is used.

x-ray emulsion
radiation-sensitive coating of an x-ray film consisting of a suspension of finely divided grains of silver halide in gelatin.
References in periodicals archive ?
Additives Offered: adhesion promoters, anti-blocking agents, anti-marring agents, anti-sagging agents, anti-settling agents, corrosion inhibitors, dispersing agents, emulsifying agents, flatting agents, flow control agents, slip aids, suspension agents, texturizers, thickening agents, water treatment chemicals, waxes
Additives Offered: dispersing agents, emulsifying agents
Additives offered: algicides, anti-blocking agents, anti-flooding agents, anti-foaming agents, anti-marring agents, anti-sagging agents, anti-settling agents, dispersing agents, emulsifying agents, flow control agents, fungicides, glycerine, mildewcides, plasticizers, slip aids, stearates, surfactants, suspension agents, thickening agents
Additives offered: anti-foaming agents, anti-sagging agents, anti-settling agents, anti-skinning agents, catalysts, coalescing agents, corrosion inhibitors, dispersing agents, driers, emulsifying agents, suspension agents, thickening agents
Gallagher, Croda was the first to explore the application of phosphate esters to hair care, both as powerful emulsifying agents and conditioning agents able to withstand pH extremes.
David Pollock, Hydron's CEO, said, "The majority of skin treatments use emulsifying agents that are non-volatile, remaining on the skin until removed by cleansing, and have a neutral pH of 6 to 7.
Cosmedia SP can be combined with almost all possible emulsifying agents," said Bettina Jackwerth, head of the skin care market segment.
The emulsifying agents form a film around the suspended oil droplet and strengthening this film can create greater stability.