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emulsion
[ ih-muhl-shuhn ]
noun
- Physical Chemistry. any colloidal suspension of a liquid in another liquid.
- such a suspension used in cosmetics.
- Pharmacology. a liquid preparation consisting of two completely immiscible liquids, one of which, as minute globules coated by a gum or other mucilaginous substance, is dispersed throughout the other: used as a means of making a medicine palatable.
- Photography. a composition sensitive to some or all of the actinic rays of light, consisting of one or more of the silver halides suspended in gelatin, applied in a thin layer to one surface of a film or the like.
emulsion
/ ɪˈ³¾ÊŒ±ôʃə²Ô /
noun
- photog a light-sensitive coating on a base, such as paper or film, consisting of fine grains of silver bromide suspended in gelatine
- chem a colloid in which both phases are liquids
an oil-in-water emulsion
- Also calledemulsion paint a type of paint in which the pigment is suspended in a vehicle, usually a synthetic resin, that is dispersed in water as an emulsion. It usually gives a mat finish
- pharmacol a mixture in which an oily medicine is dispersed in another liquid
- any liquid resembling milk
emulsion
/ Ä-³¾Å±ô′²õ³óÉ™²Ô /
- A suspension of tiny droplets of one liquid in a second liquid. By making an emulsion, one can mix two liquids that ordinarily do not mix well, such as oil and water.
- Compare aerosol
Derived Forms
- ±ðˈ³¾³Ü±ô²õ¾±±¹±ð, adjective
Other ˜yÐÄvlog Forms
- ±ð·³¾³Ü±ôs¾±±¹±ð adjective
˜yÐÄvlog History and Origins
˜yÐÄvlog History and Origins
Origin of emulsion1
Example Sentences
These glass plates recorded images of the night sky using a light-sensitive emulsion covering their surface.
His skill was perhaps most evident in his mastery of magical moles and his more inventive creations, like fried cochinita pibil head cheese with habanero ash emulsion, avocado mousse, and kumquat sauce.
Personal skincare products, ranging from beauty cosmetics to medical creams, rely on sophisticated "chassis" formulations -- often emulsions or gels -- to effectively deliver active ingredients.
The experimental emulsion may have worked better than the commercial emulsion because it was absorbed into the animals' bloodstream two times faster.
Because organic fertilizers like fish emulsion have very low concentrations of nitrogen and other elements, he recommends a monthly application of a water-soluble food labeled with a 20-20-20 NPK ratio instead.
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More About Emulsion
What doesÌýemulsion mean?
An emulsion is a mixture of two liquids that don’t fully combine. An emulsion may look like a single liquid, but it’s made up of particles of one liquid distributed throughout another liquid.
For example, if you whisk together oil and water, it forms an emulsion in which small droplets of oil are suspended in the water, but the two liquids aren’t fully blended together (as they would be if you stirred together water and vinegar, for example).
In technical chemistry terms, an emulsion is a colloidal suspension in which the substances mixed together are both liquids. Both colloids and suspensions involve particles of one substance distributed in another without being dissolved.
The word emulsion is used in a variety of contexts, including pharmacology, cooking, and photography.
In cooking, emulsions are made by blending two liquids or liquid-like ingredients into a smooth consistency. Salad dressings called vinaigrettes are typically emulsions of oil and vinegar.
The word emulsion is used in a more specific way in photography to refer to a light-sensitive coating (consisting of a chemical suspended in gelatine) that’s applied to paper or film.
The verb emulsify means to form an emulsion.
Example: To properly make an emulsion of oil and vinegar, you have to whisk very hard to separate the oil into tiny droplets, or else the two liquids will separate.
Where doesÌýemulsion come from?
The first records of the word emulsion come from the early 1600s. It ultimately comes from the Latin emulsus, meaning “milked out,†from the Latin verb ³¾³Ü±ô²µÅ§°ù±ð, “to milk.â€
A less common meaning of emulsion is “any liquid resembling milk.†We don’t usually think of milk as an emulsion, but it’s actually an emulsion of water and milk fat. The reason we don’t notice is because the fat particles have been distributed equally through the process of homogenization. Milk that is sold with the original amount of fat (or cream) is often called whole milk. Milk that has had some of this cream removed is called skim milk.Ìý
Emulsions have all kinds of practical applications. Many medications are emulsions of an oily medicine that has been mixed into another liquid. Emulsion paint consists of pigment particles suspended in water. In cooking, emulsifying ingredients allows them to be combined into a single sauce. Sometimes, an emulsion “breaksâ€â€”meaning the two substances separate. An emulsifier is an ingredient added to an emulsion to help keep it stable.
Did you know ... ?
How isÌýemulsion used in real life?
The word emulsion is commonly used in cooking, but emulsions have applications in many fields.
Rigatoni dressed in a silky emulsion of rich guanciale fat and starchy pasta water is the epitome of minimalist perfection.
— Serious Eats (@seriouseats)
The emulsion of red tomato juice, palest green cucumber juice and golden olive oil produces the right color and a smooth, almost fluffy texture
— The New York Times (@nytimes)
Tried making my own mayonnaise for the first time this morning – a kitchen task that has intimidated me for years.
My emulsion didn’t break!— Michelle Ross (@kapodemico)
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Try usingÌýemulsion!
True or False?Ìý
An emulsion can consist of a liquid and a gas.
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