emulsion
/ɪˈmʌlʃn; ɪ`mʌlʃən/ n[C, U]
1 creamy liquid in which particles of oil or fat are evenly distributed 乳状液.
2 medicine or paint in this form 乳剂; 乳漆
[attrib 作定语]
emulsion paint, ie paint that has a matt rather than a glossy finish when dry 乳状漆（乾後无光泽的漆）.
3 light-sensitive substance on the surface of photographic film 感光乳剂.