Definition of emulsion noun from the Oxford Advanced American Dictionary

     

    emulsion

     noun
    noun
    NAmE//ɪˈmʌlʃn//
     
    [countable, uncountable]
     
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  1. 1any mixture of liquids that do not normally mix together, such as oil and water
  2. 2(technology) a substance on the surface of photographic film that makes it sensitive to light photographic/film emulsion
See the Oxford Advanced Learner's Dictionary entry: emulsion