Emulsion

n.

1.

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.

Noun	1.	emulsion - (chemistry) a colloid in which both phases are liquids; "an oil-in-water emulsion"
	2.	emulsion - a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin Synonyms: photographic emulsion

backing, bibliofilm, bipack, black-and-white film, cartridge, colloid, colloider, color film, color negative film, dope, dry plate, emulsification, emulsifier, emulsoid, film, frame, microfilm, monochromatic film, motion-picture film, negative, orthochromatic film, pack, panchromatic film, photographic paper, plate, printing paper, roll, sound film, sound track, sound-on-film, soundstripe, tripack, vehicle