Emulsion
[ɪ'mʌlʃ(ə)n] or [ɪ'mʌlʃən]
Definition
(noun.) a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin.
(noun.) (chemistry) a colloid in which both phases are liquids; 'an oil-in-water emulsion'.
Inputed by Jesse--From WordNet
Definition
(n.) Any liquid preparation of a color and consistency resembling milk; as: (a) In pharmacy, an extract of seeds, or a mixture of oil and water united by a mucilaginous substance. (b) In photography, a liquid preparation of collodion holding salt of silver, used in the photographic process.
Editor: Wallace
Definition
n. a milky liquid prepared by mixing oil and water by means of another substance that combines with both.—adj. Emul′sic pertaining to emulsion.—v.t. Emul′sify.—n. Emul′sin a peculiar ferment present in the bitter and sweet almond which forms a constituent of all almond emulsions.—adj. Emul′sive.
Editor: Segre
Examples
- Then add gradually about nine ounces of the orange-flower water, stirring constantly, continuing this operation until a fine, creamy emulsion is the result. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
- This emulsion, as the coating is called, is, as we might readily infer from the presence of the silver, sensitive to the action of light in much the same manner as was the original film. Various. The Wonder Book of Knowledge.
- The soap is thus free to form an emulsion, just as in ordinary water. Bertha M. Clark. General Science.
- It seemed apparent, therefore, that in order to obtain the desired speed there would have to be sacrificed that fineness of emulsion necessary for the securing of sharp pictures. Frank Lewis Dyer. Edison, His Life and Inventions.
- Collodion emulsion with bromide of silver was invented by Sayce and made known in 1864. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Rub up well the croton oil and extract of male fern with the acacia, and form into an emulsion with the decoction. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
- Their composition is an emulsion of phosphorus with glue, nitre, and some colouring matters. Frederick C. Bakewell. Great Facts.
- The desirability of emulsions was recognized as early as 1850 by Gustave Le Gray, and in 1853 by Gaudin. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Emulsions and improvements in Dry Plate Photography by Russell and Sayce. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- In 1871 Maddox published his first notice of gelatine emulsion, and in 1873 the gelatine emulsions of Burgess were advertised for sale. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
Checker: Wade