Meaning of EMULSION in English

e ‧ mul ‧ sion /ɪˈmʌlʃ ə n/ BrE AmE noun [uncountable and countable]

[ Date: 1600-1700 ; Language: Modern Latin ; Origin: Latin mulgere 'to milk' ]

1 . a mixture of liquids that do not completely combine, such as oil and water

2 . technical the substance on the surface of photographic film or paper that makes it react to light

3 . British English ( also emulsion paint ) a type of paint used inside buildings on walls or ceilings that is not shiny when it dries ⇨ gloss , eggshell

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.